--- File.as.original    2010-09-08 12:38:36.000000000 +0300
+++ File.as     2010-10-22 17:11:36.667494485 +0300
@@ -123,6 +123,8 @@
                        file._chunks = 1;

                        postData = new URLVariables();
+                       var urlData:String = '';
+                       urlData = "/" + file._fileName + "/" + file._chunk + "/" + file._chunks;

                        for (var key:String in file._postvars) {
                                postData[key] = file._postvars[key];
@@ -130,7 +132,7 @@

                        request = new URLRequest();
                        request.method = URLRequestMethod.POST;
-                       request.url = url;
+                       request.url = url+urlData;
                        request.data = postData;

                        fileDataName = new String(settings["file_data_name"]);
@@ -406,16 +408,8 @@
                        // Setup URL
                        url = this._uploadUrl;

-                       // Chunk size is defined then add query string params for it
-                       if (this._chunking) {
-                               if (url.indexOf('?') == -1)
-                                       url += '?';
-                               else
-                                       url += '&';
-
-                               url += "chunk=" + this._chunk + "&chunks=" + this._chunks;
-                       }
-
+                       url += "/" + file._chunk + "/" + file._chunks;
+
                        // Setup request
                        req = new URLRequest(url);
                        req.method = URLRequestMethod.POST;