Hi Chuck - I'm having similar issues, as my Flash Uploader stopped working. My symptoms are that after selecting and uploading files, when you click on the submit button it goes to an empty basic vbulletin page, saying 'no images'. Permissions are all ok, I tried removing the 'echo' command (which didn't work at all..), tried going to the default style as well as disabling all plugins and products, and it still doesn't work. Is there an issue with the flash uploader libraries no longer working with the new Flash 9 or Flash 10 plugins?
Please help if you can. Thanks!