Do you have a storyline?
BTW, when I try to play it, I get
"Access violation at address0046021D in module 'GF.exe'. Read of address FFFFFFFF."
Then nothing happens - just a black screen with loading on it. Doesn't hang the system or anything, just doesn't seem to work. I am playing this on the severly low end machine though, as the better one is currently unavailable, well below the system requirement of 700 mhz. That might be the cause.
%Thirdly, what file formats are you using, specifically for the models and their skins - PSP can't open them (skins) ATM.