On July 5, 2012, Facebook will remove all FBML functionality.
FB has blocked new usage of FBML for quite some time now, but allowed the existing applications (FBML tabs) to function. This will change on 7/5/12.
FBML, as you might recall, was a way to put user contents with user specific looks and layout on facebook pages. The way to do it now is via so-called iframes.
DPWebsoft Consulting can help you transitioning from FBML to iframes. Even if you have not used either of them, we can install applications on facebook pages that work like you have own website, but it shows up under a tab of your facebook page.
Please let us know if we can help you. You can find the contact information in the “Contact Us” tab on top of this page.