Hello!
Yeah, you won't find anything on this site for that device.
I checked on xda-developers and they have a forum dedicated to it.
Here ya go:

http://forum.xda-developers.com/forumdisplay.php?f=442

hello sir...just one question..why is it that Touch Viva (OPAL) not included in the forum??? so sorry for the silly question...but i own that mobile and could not any tweaks or info about it. looking forward to your answer!!!