Not exactly sure, Laurie. I logged in today for the first time in a few days and found a message telling me I'd been promoted to "power user" and 3 "invites" in my possession. Remember, though, that I gave money, so my ratio is artificially high. Still, I did that a while ago and was only promoted recently, so perhaps all the seeding I'm doing had some influence. I don't know.
On another note: Mickey "Scraps" D., your invitation should be in your inbox. I'd have PM'd you with this news, but for some reason the board has decided you don't exist. You might want to contact Jason about that. The problem isn't at my end, 'cause I was just able to PM someone else with no trouble.
Only one invitation left, by the way.