This sounds stupid, but I really don't know how to get my incentive to show up. I have tried to host it on imageshack and Photobucket, but when you go to vote it does not show up....Any idea where i should host it to get a Url that works?

Anyone can feel free to email via the contact form or support at topwebcomics com  for these sorts of issues if things don't seem to quite work.

Now on to the issue.  A common issue is people point to pages, when it has to be an image.  Image hosting services are getting more and more sensitive to their images being hosted on remote servers, but assuming it can work, it should look like this.

http://server17.imageshack.com/incentive.jpg

post your link and we'll see what the issue might be.