Brewology

well u need custom FirmWare, cuz downloaading games is piracy and sony ovisly doesnt like it.
So wat ull need is to downgrade to lower FW so u can upgrade to custom FW, unforntnally ur psp is at the highest psp FW and theres no downgraders out for it yet...so ur stuck for now.

you have to wait for a 3.40 downgrader and downgrade it to
1.5. than you need to upgrade it to a custom fw. *(like 3.03oe-c)
when a 3.40 downgrader comes out downgrade and you can get custom fw here

http://www.dark-alex.org/index.php?Dark_Alex=firm

i dont know if psp brew has a custom fw download section or not,
but what i do know is you can rely on the people here at psp brew when u need help