225189 Can someone figure this out

I've been search for a way to do this everywhere, but can't find a solution. Does anyone know how to stuff cookies(load an affiliate url) on forums just by using an image?? Most forums only allow the forum code, so you can only upload images to your signature. Is there anyway to load and invisible frame just by posting an image? I've heard there are ways to do this through .htaccess, but i don't know if it's true. I've read this before: "Using htaccess, redirect the image url ([login to view URL]) to your affiliate url ([login to view URL])" If anyone has a solution, I'd love to work with you. Thanks.