Placa has posted a bugfix release of PSPsetX (Read the instructions, i personally wouldnt use it but each to their own)
I'm very sorry about the last PSPsetX release, I made a little mistake in the source, but I fixed it up an here is the new Version =) I've also tested it and it worked nice. Now someone with a 2.6 Game can test if he is able to play it on a 2.0.