hi i am new to this i need alittle help.Ok i rockboxed my sansa and its woking so i put the downgrader file on my sansa plugged ito my ps3 it went into service mode like it says now heres the thing what files do i need after to downgrade and where do i find them?do i put them on a usb stick?and do i need to put more files on my sansa after i downgrade and how easy it to go back to original fw oh i am at 3.50 now.I hope someone can help me out.Thanks