Only in salesforce/includes: ._salesforce.php
diff -urp salesforce_orig/includes/salesforce.php salesforce/includes/salesforce.php
--- salesforce_orig/includes/salesforce.php	2007-05-04 04:09:05.000000000 -0500
+++ salesforce/includes/salesforce.php	2008-01-25 11:59:42.000000000 -0600
@@ -129,7 +129,7 @@ class salesforce {
      * @access public
      */
     function setURL($url){
-        $this->client->forceEndpoint = str_replace("https", "http", $url);
+        $this->client->forceEndpoint = $url;
     }
     
     /**