bbPress.org

Hello,

I just set up a basic forum:
http://www.sugarboxing.com/forum/

I would like to ask you gimme some tips on where can I look for solutions to my problems.
I do not mind you writing the solution here, but caring of your time, this is not really expected. Just links would do just fine:

My problems:
Basically I want my forum look more like this one:
http://www.rosstraining.com/forum/ (this gues use phpBB though).

I want
1. all forums (main and single) pages be without a sidebar
2. I want to change the skin somehow, please suggest where can I get some neat custom css I guess
3. I want all sub-forums listed line by line, not like now when they clustered in a line separated by commas
4. Maybe some extra plugins suggstions

I use WP Mantra theme just in case

Thanks in advance!