Help Which is better Upgrade of Downgrade my psp??pls read

;DHi,i have upgrade my psp 2000 to firmware 5.00 now i cant play any game..
i dont have a pandora battery or magic stick to downgrade it now and i think that is not the wise thing to do,perhaps it would be much better if i upgrade it in version 5.00 m33 cwf,what do you think??
if upgrading would do me much better,can anybody give a good link where i could download the firmware...
any suggestion are highly appreciated..
thanks..
;D ;D ;D ;D

are you using official 5.00 or are you using CFW?
Because if you're using official you're gonna have to downgrade first to use CFW

Keep it to one thread, and read the tutorials people are telling you to.