Let's fix your computer so you get an exact error message when things go awry rather than the generic 500 "friendly" error. Please do this:

1. Open your browser
2. Click Tools
3. Click Internet Options
4. Click the Advanced Tab
5. UNcheck the box that says "Show friendly HTTP error messages
6. Click Apply
7. Click OK

Now you will be able to get an exact error message. Once you know that your pictures are properly formatted (and you've turned off friendly error messages) please try to upload the picture again. If you receive an error message please use our Contact Form and copy and paste the exact error message you receive in your reply.