Well i restarted the device and now i have JC6, build FRG83. Its fine with me. I took the baseband from those links in the guide on drakaz forum. Tho System Panel app still shows unknown at the band section.
Lel, try AndroZip, its a nice file manager, and it also have a app manager where u can backup and uninstall every app, just like in titanium, and also a task manager.
Also try UC Browser, you might like it, i do, i made it default. Its free on their website, maybe in market also.
In SAMSUNG we trust!