Confused to say the least.
Have you downgraded to firmware 1.50, if so you can now install custom firmware.
If not maybe try a different guide like
http://forums.noobz.eu/do...xt-guide-in-progress-x/0/ remember you need a PSP with CFW already on it to create the magic memory stick, skip the pandora battery bit as you have an off the shelve model.