Adwords campaign disabled right after placing amazon banner ad at the top of my site?

[bobo.cx]

I recently had one of my ad campaigns disabled right after I put an amazon banner ad at the top of my site. I know sites that mainly redirect to other sites aren't allowed to be advertised with adwords, but I thought having one banner ad was okay. Do you think the fact that I had it at the top of the page, and not at the bottom, was the problem? Or are you not allowed to have amazon links or banners anywhere on a site advertised with adwords?