So I'm thinking of making a billboard and have just a few questions. So first I make a billboard. Then I submit it so it can get approved. But how do I get it to link to my forum post? And the impressions, does that mean how many times it's going to pop up at the top?

When you submit it, you submit both the image and the link for approval, so you would submit the link to your forum post. And yes, impressions are how many times it pops up.

Ok. Thanks so much! ^-^