Help with DAX time machine.....

Hi im a noob with this stuff and i need to know how to use time machine to downgrade to 3.40 -OE when i use it I select it and go to check system software it still say 3.90 M33-3 I and running 3.90 M33-3 and on a phat plz help

please I really need help

ace: Um, please don't double post. Go real teh rulez nublet. And Sometimes it takes longer then 10 minutes for someone to respond, so get some patience.

alright sorry i just really need help.....

So you have a slim psp? why do ya need to downgrade to 3.40 OE?
You want to totally downgrade to 3.40 OE or just emulate it?