Hi

I'm trying to dynamically change the upload url and it's failing with the following error in the callFlash method

swfu.setUploadUrl("/new-url");

__flash__argumentsToXML not defined

I get the same problem with
swfu.addPostParam("id","1");

This is happening on Windows XP, Safari 4.04, Firefox 3.5.8, IE

The uploader works fine if I don't try to change the upload url

I'm using 2.1 of SWFUpload