Also, just as an FYI on how it works.
Whoever leaves you reputation must have enough posts or enough time on the board to count. Posters with under a certain number of posts or not signed up on the board for a long enough time don't count, but they can leave you comments.
Someone who's been on the board for a year, or more, has a multiplier so each rep point is worth more as they have been on the board for a longer time.
You get a green dot starting out when you sign on to the board (you get an initial 10 reputation points) and if you get to 100 then another green dot is added and another for each 100 points.
If you mouse-over the green dots, you can see different sayings. They will change at 50, 150, 250, 350, etc.
To see more about that go here
http://www.vbulletin.com/docs/html/
and find the category on the side that says User Reputation.
Oh, and if someone leaves you negative reputation then points are taken away.