diff --git a/Readme.md b/Readme.md
index 96da511..0ca4470 100644
--- a/Readme.md
+++ b/Readme.md
@@ -8,8 +8,9 @@ Also provides rudimentary OAuth2 support, tested against facebook connect and gi
 at express-auth (http://github.com/ciaranj/express-auth) 
 
 Change History
-==============
-
+============== 
+* 0.7.7 - Looks like non oauth_ parameters where appearing within the Authorization headers, which I believe to be inccorrect.
+* 0.7.6 - Added in oauth_verifier property to getAccessToken required for 1.0A
 * 0.7.5 - Added in a main.js to simplify the require'ing of OAuth
 * 0.7.4 - Minor change to add an error listener to the OAuth client (thanks troyk)
 * 0.7.3 - OAuth 2 now sends a Content-Length Http header to keep nginx happy :)
diff --git a/lib/oauth.js b/lib/oauth.js
index 5955ded..8c1c0da 100644
--- a/lib/oauth.js
+++ b/lib/oauth.js
@@ -193,8 +193,12 @@ exports.OAuth.prototype._performSecureRequest= function( oauth_token, oauth_toke
 
   // build request authorization header
   var authHeader="OAuth "; 
-  for( var i= 0 ; i < orderedParameters.length; i++) {
+  for( var i= 0 ; i < orderedParameters.length; i++) { 
+     // Whilst the all the parameters should be included within the signature, only the oauth_ arguments
+     // should appear within the authorization header.
+     if( orderedParameters[i][0].match('^oauth_') == "oauth_") {
       authHeader+= this._encodeData(orderedParameters[i][0])+"=\""+ this._encodeData(orderedParameters[i][1])+"\",";
+     }
   }
   authHeader= authHeader.substring(0, authHeader.length-1);
 
@@ -233,11 +237,14 @@ exports.OAuth.prototype._performSecureRequest= function( oauth_token, oauth_toke
   request.end();
 }
 
-exports.OAuth.prototype.getOAuthAccessToken= function(oauth_token, oauth_token_secret, oauth_verifier, callback) {
-   var extraParams = {};
-   if( oauth_verifier ) {
-     extraParams.oauth_verifier = oauth_verifier;
-   }
+exports.OAuth.prototype.getOauthAccessToken= function(oauth_token, oauth_token_secret, oauth_verifier,  callback) {
+  var extraParams= {};
+  if( typeof oauth_verifier == "function" ) {
+    callback= oauth_verifier;
+  } else {
+    extraParams.oauth_verifier= oauth_verifier;
+  }
+  
    this._performSecureRequest( oauth_token, oauth_token_secret, "GET", this._accessUrl, extraParams, function(error, data, response) {
          if( error ) callback(error);
          else {
diff --git a/package.json b/package.json
index 8bcd76d..5d44047 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 { "name" : "oauth"
-, "version" : "0.7.5"
+, "version" : "0.7.7"
 , "directories" : { "lib" : "./lib" }
 , "main" : "main.js"
 , "author" : "Ciaran Jessup"