Hi, I would like to display a generic landing page for people who have yet to like my page and after they click 'like' my page, a download link will appear for them to download a report or something. Anyone knows how to implement this?
Use the Static FMBL module. Do a search for fan only content with static fbml. There are several good articles that will explain how to do it. Now, if you're trying to accomplish this on your own website, you'll need to use Facebook connect in conjunction with the graph api and opengraph api. It's a little more complicated, but I do something similar on some of my sites.