There's a tutorial here - http://www.corel.com/servlet/Satellite/us/en/Content/1180362115671 - which explains how it's done in PSP. If you have any problems with it, please ask. If you post your question up in the "How Do I?" folder with PSP9 in the title, then the girls who use that program will jump in and help you with it. :o)
I got it :) now im trying the fading pics in psp and AS / I got the tut from here, but i dont understand how to make my siggy then get the pics to change, when i go to AS and do the transition it makes my whole siggy fade and change instead of just the pictures fading out and changing :(