I'm here to help you psp_fan.
EDIT: First download this link first, then run it to update to 2.71 SE-A, they you gotta download this and run it to update to 2.71 SE-B". All these are Auto Installers, so you don't need anything but the PSP 1.5, and enough guts to risk the brick, although it has been tested a million times and working, it still writes to the flash and has a chance of bricking the PSP.
P.S. Before I get ahead of myself, just to make sure, you do have 1.5 right?
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