First of all, I have searched the forum as best as I could.. no luck.
Secondly, I am an absolute newbei to both joomla and fireboard.

I had figured out that articles in joomla can b put in trash and then restored if not deleted. I thought the same applies to Fireboard and accidentally deleted a forum with a few threads and messages. I am now at aloss and have no clue how to get it back on the site...

I had luckily made a backup of my database!!

Any help will be greatly appreciated. Many many thanks.. for attempting to rescue me.

It should be as easy as copy the section that you wan to restore and then running it as a query through PHPMyAdmin. If you haven't made any changes you can copy all of the FB tables just to make sure and restore them.