Debrand k850i

hi, i just bought a ROGERS K850I AND HAD IT UNLOCKED, and now i need to debrand it to acess more fetures like flash themes and mp3 ring tones ect. how would i do it

I USED A2 UPLOADER TO GET THE FOLLOWING :

ChipID:C802,EMP protocol:0401

PHONE STATE: "RETAIL"
FLASH CID: 0052
OTP LOCKED:1 CID:52 PAF:1 IMEI:35182902577550 CERT:RED
LDR:2009-04-21 18:09 CXC1250843_DB31XX_CS_LOADER_ACC_SDRAM_R2A081
LDR:2009-04-21 18:10 CXC1250780_DB31XX_CS_LOADER_APP_SDRAM_R2A081

Model:K850i
MAPP CXC article: R1DC001 prg12027886_NAM_1_SO
MAPP CXC version: R1DC001
Language Package:ROGERS
CDA article: 1202-7829
CDA version: R4A
Default article: 1200-5441
Default version: R1DC001

Operator: 000-00

Elapsed:19 secs.

by the way, WHAT DOES GENERIC FRIM WARE MEAN? AND WOULD DE BRANDING IT MAKE IT LOCK BACK TO ROGERS?