I'm still in trouble, i tried both the files in this site but they're wrong for me: one is for a 1.8" screened player, the other for a 256mb model, i think a s1-like.
Shame on me for daring that damn update!
If anyone has a sigmatel please upload it! I'm sure you'll be making happy both the admins and poor fools like me.
Soon i'll upload some files i've found here and there.