Well you need the chickHEN cfw i believe.. Not the 5.50 GEN... http://www.consolediscussions.com/fo...-and-5-t18931/ you can find it on this post..

Also, i don't think you can get on the PSN anyways with cfw.. Even with the new firmware release later on today they said you still won't be able to get in on PSN.. IT'll just be a waste of time as Sony will just update and patch the requirements again to get in..

I suggest downloading and installing MediaManager as it's free anyways.. Then just transfer your contents onto your PSP via the computer usb..