This devhook version rocks with 3.01. I have a 1.50 psp. All I did was plug in my psp to the pc, ran the exe file that will copy everything to memory stick(I had 512mb ms) then run firmware 3.01 install on your psp this extracts files and decripts it on your psp. Next run Devhook and let it autoload into 3.01. Another menu comes up but you can deselect it to continue using 3.01. I have tryed my games and they work!.. remember some of the controls in the menu while emulating 3.01 are reversed eg x/o buttons and the yes for exit devhook to 1.50 is no....
I also got my older .45 devhook working with this on another ms.
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