1. Do I need to run rpm -Uhv jade-1.2.x-y.src.rpm again? Actually I did try but the previous error remains. /I thought I need to SETENV or something! for scrollkeeper if so how could I do it? I am rather new to *nix world./
2. I have Openjade installed so, do I need Jade now?
No (and this means No for the first question too).
3. Is there any tool that could verify whether I have set up the environment correctly? /like one in OpenOffice Localization project!/
If you can do a 'make test', then your system is set up fine.
Goba