Not too late, I now have you on the list.
Go ahead and get started. This weeks thread is FB Spotlight 3-24-13 - 3-30-13 or something like that, find that thread on the forum and read down to find the shop, the item and the url's you need to share this week. Shop and item will change on Sunday every week.
Also, you might want to go through this particular thread and like all the folks who have signed up so that when they share it will also be shared to you.
If you have questions, please do not hesitate to ask, someone will answer usually pretty quickly.