look at the top right of thier post you want to give rep for, and you will notice a little scale, then just click on that, and the positive rep button is already checked. You give more rep points if you leave a comment. How you get it is the same way someone does that for one of your posts, you should already have some I believe
Rob's in the top 5, and I'm in the top 30 on FTE. Crazy enough...1 and 2 are the other two crazy guys Proeliator and Ivanribic...lol #'s 1 and 2 on the mod's usual **** list and theyahvethe highest rep...great.