You need to have DarkyROM 10.2 Resurrection GT-I9000. Download here
Copy "DarkyROM_XXJVR_BASE.zip" into your phone "/mnt/sdcard"
JVR Modem for I9000
ODEXED Browser (no lag)
DEODEXED the rest
Before proceed with flash JVR, you need to make sure
Do NOT install Ad-HocBoot recovery and select ZIP file to flash
Sit back Relax and Smile :)