PSGrade for iPhone 2g/3g and iPod Touch 1g | PS3Hax Network
Files were removed. There is one for the iPod Touch 1g only though. Might have to search them out.
Found a place that has the files. http://translate.google.com/translat...ed=0CGoQ7gEwCQ
Use at your own risk.
BTW, I have no knowledge of the iPod Touch. Someone else will have to help you with that one.