i just bought a new psp and just found out that u can mod it, but i think i made a mistake. i upgraded my psp to ver. 3.51 via inter. i read a lot of posts but can´t find one that matches my prob. can i still mod my psp? can i dwngrade or do i have to wait for a something new? if i can how can i? any help will be great help. thnks.