Affiliate Marketing Secrets

I know how to create banners, clickable banners and know how to use Photoshop. What I need is something very specific… I see many FB pages have cute and professional banners that ask visitors to “like us” FIRST to view the page content. If the visitor doesn’t lick the “like” button for the page, they can’t view the content. Is there an application to do this on FB?
I want to know how to do that for my page. Also, I want to know if I can create a clickable banner and place it in my page that takes fans or visitors directly to my personal website or affiliate links to generate traffic and commissions. 😀 Any help?