Dear Sohail,
No worries
As for the Grid format, I think it needs a bit more testing and indeed I'm not completely happy with the overloading in the child renderer class (although the code works) - please see lots of information on CONTRIB-3769. And a stable release is up to Julian R, I've been working with him to get a version out. What I've found really helps is 'testers' people who track down issues and tell you - this has really helped for Collapsed Topics as you can see from the credits in the Readme.
Cheers,
Gareth