Hi,
I'm swfupload 250beta3 for image upload and compression and am using the Flash 9 version as a fallback to just upload a file. I am testing the Flash 9 version in Firefox and what I'm seeing is that whenever i tries to upload the file, it is denied access to the (protected) upload url, because it is using a new/different user session than the HTML page displaying the component. This is not happening on the Flash 10 version.
The workaround is to display an HTML file upload, so it's not criticial, but I thought I'd let you know.
Cheers,
Marc