I won't link imgrobot dot com if you take a look at the front page, the script wont run. Obvious reasons, something is missing. I have downloaded the "gd" library but I can not understand for my life. How to upload it to my host? I am using cpanel by the way if that helps. Any help is greatly appreciated.
The error says, it required GD or imagemagic. Uploading it doesnt help, your host need to install and compile PHP with support for either. Normally atleast one of them would be supported, this looks strange. You may talk to the host, and please post the phpinfo() for any further help.
Ask your host to compile GD in easyapache in their WHM. They should ahve in the first place. If you still need help, hit me up and I will give you hosting at student rates.