diff --git a/setup.py b/setup.py
index 6da5569..7287c74 100755
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ class PyTest(Command):
 install_requires=[
     # core dependencies
     'decorator',
-    'httplib2',
+    'requests >= 1.0.0',
     'paste',
     'zope.interface',
     'repoze.who == 1.0.18'
diff --git a/src/saml2/client_base.py b/src/saml2/client_base.py
index 14ace8b..082c9cb 100644
--- a/src/saml2/client_base.py
+++ b/src/saml2/client_base.py
@@ -18,7 +18,6 @@
 """Contains classes and functions that a SAML2.0 Service Provider (SP) may use
 to conclude its tasks.
 """
-from saml2.schema import soapenv
 from saml2.entity import Entity
 
 from saml2.mdstore import destinations
@@ -43,7 +42,7 @@ except ImportError:
 from saml2.s_utils import signature
 from saml2.s_utils import do_attributes
 
-from saml2 import samlp, BINDING_SOAP, element_to_extension_element
+from saml2 import samlp, BINDING_SOAP
 from saml2 import saml
 from saml2 import soap
 from saml2.population import Population
@@ -468,7 +467,7 @@ class Base(Entity):
 
     # ======== response handling ===========
 
-    def parse_authn_request_response(self, xmlstr, binding, outstanding):
+    def parse_authn_request_response(self, xmlstr, binding, outstanding=None):
         """ Deal with an AuthnResponse
 
         :param xmlstr: The reply as a xml string
@@ -564,7 +563,8 @@ class Base(Entity):
 
     # ------------------- ECP ------------------------------------------------
 
-    def create_ecp_authn_request(self, entityid=None, relay_state="", sign=False):
+    def create_ecp_authn_request(self, entityid=None, relay_state="",
+                                 sign=False, **kwargs):
         """ Makes an authentication request.
 
         :param entityid: The entity ID of the IdP to send the request to
@@ -596,14 +596,24 @@ class Base(Entity):
         # <samlp:AuthnRequest>
         # ----------------------------------------
 
-        logger.info("entityid: %s, binding: %s" % (entityid, BINDING_SOAP))
+        try:
+            authn_req = kwargs["authn_req"]
+        except KeyError:
+            try:
+                _binding = kwargs["binding"]
+            except KeyError:
+                _binding = BINDING_SOAP
+                kwargs["binding"] = _binding
 
-        # The IDP publishes support for ECP by using the SOAP binding on
-        # SingleSignOnService
-        _, location = self.pick_binding("single_sign_on_service",
-                                        [BINDING_SOAP], entity_id=entityid)
-        authn_req = self.create_authn_request(location, binding=BINDING_SOAP,
-                                              service_url_binding=BINDING_PAOS)
+            logger.debug("entityid: %s, binding: %s" % (entityid, _binding))
+
+            # The IDP publishes support for ECP by using the SOAP binding on
+            # SingleSignOnService
+            _, location = self.pick_binding("single_sign_on_service",
+                                            [_binding], entity_id=entityid)
+            authn_req = self.create_authn_request(location,
+                                                  service_url_binding=BINDING_PAOS,
+                                                  **kwargs)
 
         # ----------------------------------------
         # The SOAP envelope
diff --git a/src/saml2/httpbase.py b/src/saml2/httpbase.py
index 0930083..4b01647 100644
--- a/src/saml2/httpbase.py
+++ b/src/saml2/httpbase.py
@@ -7,7 +7,6 @@ import urlparse
 import requests
 import time
 from Cookie import SimpleCookie
-from saml2.profile import paos
 from saml2.time_util import utc_now
 from saml2 import class_name
 from saml2.pack import http_form_post_message
@@ -262,7 +261,7 @@ class HTTPBase(object):
 
         :param request:
         :param destination:
-        :param headers:
+        :param soap_headers:
         :param sign:
         :return: dictionary
         """
@@ -270,7 +269,7 @@ class HTTPBase(object):
 
         soap_message = make_soap_enveloped_saml_thingy(request, soap_headers)
 
-        logger.error("SOAP message: %s" % soap_message)
+        logger.debug("SOAP message: %s" % soap_message)
 
         if sign and self.sec:
             _signed = self.sec.sign_statement_using_xmlsec(soap_message,
@@ -301,14 +300,11 @@ class HTTPBase(object):
             logger.info("HTTPClient exception: %s" % (exc,))
             raise
 
-        if response:
-            if response.status_code == 200:
-                logger.info("SOAP response: %s" % response.text)
-                return response
-            else:
-                raise HTTPError("%d:%s" % (response.status_code, response.error))
+        if response.status_code == 200:
+            logger.info("SOAP response: %s" % response.text)
+            return response
         else:
-            return None
+            raise HTTPError("%d:%s" % (response.status_code, response.error))
 
     def add_credentials(self, user, passwd):
         self.user = user
diff --git a/src/saml2/pack.py b/src/saml2/pack.py
index 6bdc8c4..7f5d437 100644
--- a/src/saml2/pack.py
+++ b/src/saml2/pack.py
@@ -146,6 +146,7 @@ def make_soap_enveloped_saml_thingy(thingy, header_parts=None):
         header.tag = '{%s}Header' % NAMESPACE
         envelope.append(header)
         for part in header_parts:
+            # This doesn't work if the headers are signed
             part.become_child_element_of(header)
 
     body = ElementTree.Element('')
diff --git a/src/saml2/server.py b/src/saml2/server.py
index 8061c35..5b934dc 100644
--- a/src/saml2/server.py
+++ b/src/saml2/server.py
@@ -187,7 +187,7 @@ class Server(Entity):
         """
 
         return self._parse_request(xml_string, NameIDMappingRequest,
-                                   "manage_name_id_service", binding)
+                                   "name_id_mapping_service", binding)
 
     # ------------------------------------------------------------------------
 
diff --git a/src/saml2/soap.py b/src/saml2/soap.py
index e1f3f1a..e4bebcf 100644
--- a/src/saml2/soap.py
+++ b/src/saml2/soap.py
@@ -110,6 +110,10 @@ def parse_soap_enveloped_saml_authn_query_response(text):
     tags = ['{%s}Response' % SAMLP_NAMESPACE]
     return parse_soap_enveloped_saml_thingy(text, tags)
 
+def parse_soap_enveloped_saml_authn_response(text):
+    tags = ['{%s}Response' % SAMLP_NAMESPACE]
+    return parse_soap_enveloped_saml_thingy(text, tags)
+
 
 #def parse_soap_enveloped_saml_logout_response(text):
 #    expected_tag = '{%s}LogoutResponse' % SAMLP_NAMESPACE
diff --git a/tests/test_63_ecp.py b/tests/test_63_ecp.py
index 09c7332..c60d8ea 100644
--- a/tests/test_63_ecp.py
+++ b/tests/test_63_ecp.py
@@ -98,7 +98,7 @@ def test_complete_flow():
     idp = Server(config_file="idp_all_conf")
 
     IDP_ENTITY_ID = idp.config.entityid
-    SP_ENTITY_ID = sp.config.entityid
+    #SP_ENTITY_ID = sp.config.entityid
 
     # ------------ @Client -----------------------------
 
@@ -170,11 +170,12 @@ def test_complete_flow():
         if item.c_tag == "Response" and item.c_namespace == ecp_prof.NAMESPACE:
             _ecp_response = item
 
-    _acs_url = _ecp_response.assertion_consumer_service_url
+    #_acs_url = _ecp_response.assertion_consumer_service_url
 
     # done phase2 at the client
 
-    ht_args = client.use_soap(idp_response, cargs["rc_url"], [cargs["relay_state"]])
+    ht_args = client.use_soap(idp_response, cargs["rc_url"],
+                              [cargs["relay_state"]])
 
     print ht_args