(adsbygoogle = window.adsbygoogle || []).push({}); Hello guys I need help

So Im running CFW and decide to download the latest trophy unlocker from XIDIVYBC mega 3.55 signing thread. I downloaded so I can give it a go and launched it and unlocked all the Black ops trophies for it.After quitting the application and checked my trophies, I noticed that I got my platinum but 48% completed.So then I launched Black ops only to find that I just end up with a black screen -.- Had to shutdown my ps3 with the back switch and tried again and again and same thing :FU:
Then I made another user and launched BO and it worked.Went back to my main user and deleted the patch and savedata but still black screen.
So basically I need help getting rid of this black screen error because I dont want to make a whole new account since I cant transfer some of my savedata because it wont let me. So any answers please

You need to go into the trophy folders and delete the BU and NW trophy folders for Black ops.
It will put u back to wht ever trophy percentage u had before.

So basically I use FTP server and where abouts are the folders located ?