new to this was screwing around,accidentally updated,now im on 1.52 version and my fastloader is 1.5 version.....not alowing me to play any games...what do i need to do...please help... been jumping form website to website...dunno where to go from here..

Upgrade to 2.00. Downgrade from their to 1.5. Don't ask how, there are tutorials on this site.

first you need to upgrade to firmware 2.00 then you can downgrade to 1.5 you can get the upgrades at this site http://www.psp-hacks.com/category/10
one you downloaded the eboots put them into a UPDATE folder then update the psp to firmware 2.00 like so:
PSP-->GAME-->UPDATE "EBOOT.PBP (WHICH IS THE UPDTATE 2.00)" then you update
then you use the mph downgrader to downgrade and make your psp think its running 1.00 then upgrade to 1.5 the same way as updateing to 2.00
PSP-->GAME-->UPDATE "EBOOT.PBP (WHICH IS THE UPDTATE 1.50)" then you update
Then you should have a psp firmware 1.5 again
Good Luck

where do you get the v2.0 upgrade?

just click the link that i put above that goes to psp-hacks and you would find the 2.00 firmware updtate