diff --git a/php/OAuthSimple.php b/php/OAuthSimple.php
index 44f5b1d..ff57933 100644
--- a/php/OAuthSimple.php
+++ b/php/OAuthSimple.php
@@ -106,9 +106,13 @@ class OAuthSimple {
     * @param {string,object} List of parameters for the call, this can either be a URI string (e.g. "foo=bar&gorp=banana" or an object/hash)
     */
     function setParameters ($parameters=Array()) {
+        
         if (is_string($parameters))
             $parameters = $this->_parseParameterString($parameters);
-        $this->_parameters = $parameters;
+        if (empty($this->_parameters))
+            $this->_parameters = $parameters;
+        elseif (!empty($parameters))
+            $this->_parameters = array_merge($this->_parameters,$parameters);
         if (empty($this->_parameters[oauth_nonce]))
             $this->_getNonce();
         if (empty($this->_parameters[oauth_timestamp]))
@@ -119,7 +123,7 @@ class OAuthSimple {
             $this->_getAccessToken();
         if (empty($this->_parameters[oauth_signature_method]))
             $this->setSignatureMethod();
-
+        //error_log('parameters: '.print_r($this,1));
         return $this;
     }
 
@@ -290,6 +294,7 @@ class OAuthSimple {
             else
                 $result[$key]=$token;
         }
+        //error_log('Parse parameters : '.print_r($result,1));
         return $result;
     }
 
@@ -339,7 +344,7 @@ class OAuthSimple {
     }
 
     function _getTimeStamp() {
-        return $this->_parameters['oauth_timestamp'] = time();
+        return $this->_parameters['stamp'] = time();
     }
 
     function _normalizedParameters() {
@@ -371,6 +376,7 @@ class OAuthSimple {
 
             case 'HMAC-SHA1':
                 $sigString = $this->_oauthEscape($this->_action).'&'.$this->_oauthEscape($this->_path).'&'.$this->_oauthEscape($this->_normalizedParameters());
+                error_log('SBS: '.$sigString);
                 return base64_encode(hash_hmac('sha1',$sigString,$secretKey,true));
 
             default:
diff --git a/php/index.php b/php/index.php
index 507d67d..a44e5fc 100644
--- a/php/index.php
+++ b/php/index.php
@@ -13,10 +13,10 @@
     // Some sample argument values
 
     // You can pass in arguments either as a string of URL characters:
-    $argumentsAsString = "term=rat&expand=formats,synopsis&max_results=1&boo=foo&boo=fie";
+    $argumentsAsString = "term=mac%20and+me&expand=formats,synopsis&max_results=1";
     //   or a hash:
     $argumentsAsObject = Array(
-        term=>'rat',
+        term=>'the prisoner',
         expand=>'formats,synopsis',
         max_results=> '1',
     );
@@ -57,8 +57,12 @@
         <h1>Test Document</h1>
         <ol>
             <li><a href="<?php print $sample1Results['signed_url'] ?>">First Link</a><br />
-            <?php print $sample1Results['signed_url'] ?></li>
-            <li><a href="<?php print $sample2Results['signed_url'] ?>">Second Link</a></li>
+            </li>
+            <li><a href="<?php print $sample2Results['signed_url'] ?>">Second Link</a>
+            <?php /*
+            <pre> <?php print_r($sample2Results); ?> </pre>
+            */ ?>
+            </li>
             <li><a href="<?php print $sample3Results['signed_url'] ?>">Third Link</a></li>
         </ol>
         <a href="index.phps">Source for index</a><br />