Busted!
I saw you asking CodeRipper to find a tutorial that resembled yours. Since you can only review once, I'll be happy to fill in the slot.
Look familiar?
http://www.newgrounds.com/bbs/topic.php?id=37751&page=2
A lot of the movement scripts are nearly identical to yours. Also check the other pages of this thread for some oddly familiar scripts.
Ciao'