PSPSet, Darkfoxsniper's gameboots, unbranded plugin, and a slim

[Cros]

I downloaded the Crisis Core gameboots that DarkFoxSniper posted, and I thought the one with the PSP logo looked awesome. I downloaded PSPSet but whenver I install it on my slim I get "corrupted data" for one of the folders, and "this game could not be started" for the other. Does this mean it won't work because it needs the 1.50 kernal? And in DarkFoxSniper's readme he mentions needing an unbranded opening_plugin.rco, where can I find that?


Also, how can I make a backup of the original gameboot?


EDIT: Alright, I found a program called ThemePlus! V3.01. I installed it into the plugins folder and enabled it in the recovery menu, but how do I actually use the plugin to change my theme?