Help needed with PSP emulator

[7800fan]

I am trying to get Vectrex games on my PSP but I keep getting corrupted files error. It did not matter what folder I installed or how it's arrainged, it just won't load.

I am wondering if firmware 660 is too new? I am using 660-pro and other emu runs fine. Although Intellivision is hard to play with needing pop up on screen keypad :/

Edit: http://filetrip.net/file.php?id=27547is where I was getting the emu

[Mr Retro]

any tutorial on PSP emulation would be much appreciated