Quote Originally Posted by JmanUmmKay
You could convert it into a 1.0 eboot. That may work. A good program to use would be PSPBrew. That will convert 1.5 eboots into a 1.0 eboot.
I just tried it, but this did not work. After converting the PBPs of ThemePSP to 1.0 nothing changed. When I try to run the program from psp/game150 it starts, but tells me to reinstall it into psp/game/ThemePSP and nowhere else. But when I try to do so, it won't start at all; I guess because it is not compatibel with the 2.71 FW.

But thanks for your fast reply anyway