Let me get this straight....

You want to make the pandora battery normal again, make your memory stick and magic mem, then make the normal battery a pandora one again?

First part sounds silly. Just leave it as a pandora if that's what you need. Although from the vsh menu you should be able to swap between a normal and pandora battery, although that might just be 5.50GEN

To make a magic memory stick however you need the Pandora Universal Downgrader Easy Installer, which can be found here:

http://www.mediafire.com/?zspoabdazr2evah

Run that and follow all the steps, its got a readme etc so you can't get stuck.

Once that's done the memory stick will be a magic one and it will also have the pandoras battery app on it to turn a psp 1000 battery into a pandoras battery. If you need to that is.

Then with these tools unbrick that semi-bricked 2000 and get it onto the latest CFW like 5.50GEN or 6.37 ME-3 for PSP2000.

That link you posted to the cheat thing for GTA looks awesome. But you should try see if the plugin works on other firmwares, you'll be surprised how many old plugins do. It should be able to work fine on 5.00m33 and maybe even 5.50GEN. If it does you can upgrade your psp1000 too.


Hope this helps.