Serious computer/internet problem? really need help from experienced people?

i have windows xp 32-bit home edition version 2002, sevice pack 2. i recently upgraded my trend micro antivirus software, and i'm using it's firewall. i think i might be using the built-in windows xp firewall at the same time. this might be the problem, but i don't think so, it never cause problems before. the problem is that i can't upload anything!! i can't upload pictures in flickr, i can't convert pictures online, i con't send attachments in my emails, i can't post new threads (with attachments) in forums, and when i tried the online internet speed test, the download test worked (about 3mbs) but the upload test didn't work at all. when i was uploading photos on flickr, i tired the new uploader (online) their old one (also online), and their flickr uploadr software. i've tried many sites, and different types of uploading, but none of the worked and i've also tried using three different web browsers: internet explorer, safari for windows, and mozilla firefox. i get an error message.

Serious computer/internet problem? really need help from experienced people?photoshop

What exactly is this "error message"? Try disabling Trend-Micro firewall if you are using the Windows Firewall as well. As far as I know, if you allow the browser program to connect, which it obviously is, then you should be able to upload photos. It has to be the Trend-Micro thing. Try changing some firewall settings, or completely disabling that part. Windows XP Firewall is not that bad =)