[rake]

Like i said, before, you can't come here and expect someone to code an entire hack for you, well, unless one of the coders is willing to.. you should at the Modification Requests forum, or unless you are willing to pay, in which case, you should look at the Service Requests forum. However, you can always ask for advice around here. There are always people willing to help.

Here are my tips:
1. Look into file upload via PHP.
2. Tie your script with vBulletin for easy thumbnail creation, since the functionality is already there. You just need to tweak it to suit your needs. Check the includes/functions_image.php file.