I know no one has posted in this topic in a while and I am a newbie to this site.
For the black space between "http://www.rpgfan.com/graphics/t-features.gif"
is happening, because you have it has a single image and in a <img src> - this is a no-no.
Easiest way to fix it would add another row with the repeatable area, same with the header image. Would be best to be done using CSS.You are basically gonna have to recode the whole site, because of how crappy it has been coded.
I'll just say this the easiest way, it needs to be stripped and recoded. it's horrible. Doesn't even pass W3C standards.
Do not take this wrong, I am helpin. ;D