I've read a lot of tutorials, now I'm trying to find the signature by myself, and finally I found the function from windows library on IDA, it's named sub_1009DD60, I renamed it to CBasePlayer::RemoveAllItems.
Here is what I got:

I got this:
83 EC 10 33 C0 53 56 8B F1 33 DB 57 38 9E 06 03 00 00 0F 84 85 00 00 00 .. .. .. ..
It looks the same as yours, no idea why your sig is not working...
And I wanted to know, when do I have to replace the bytes with "*" ?
EDIT:
DUNNO why, It's work again ...