upload problems

I'm trying to do some uploading on my server, and I'm not getting any value for my "tmp" upload setting - meaning this code: $source = $_FILES['cat1_thumb']['tmp_name']; echo $source; returns nothing. The form is fine - meaning that the text input name is correct and I am indeed selecting a file. I realized that our upload_tmp_dir setting was not set, so I had the admin set it, but it still returns nothing. Is there another setting I should check? Thanks -- ------------------------------------------------------------ http://www.phreshdesign.com