I just discovered this forum when trying to find a way to link groups to pages in facebook and was thrilled to see such clear directions for how to do it. Unfortunately the wiki.developers link provided doesn't work so I've come to a grinding halt.
Really hoping you might be able to help as I been searching through FB without success and would love to be able to link our groups to our official alumni FB page!
Unfortunately, Facebook has done away with FBML and, therefore, Static FBML tabs are no longer available. You should look into i-frame tab applications that you can add to your page.
Patrick Powers did a good blog post that may help you move forward:
These i-frame tab applications typically work by allowing HTML code, so you'll need to be familiar with some basic HTML (or good at Googling so you can just find copy-and-paste code snippets).
I'll take a look at the blog and see how I get on. Good job I'm just finishing up a course on basic HTML, sounds like I'm going to be putting it to use pretty soon!