I set-up the co-op on a new site about a month ago. The ads are appearing and have been validated. I know I have low weight but according to the stats my ads have never appeared in the co-op. Does it take more than 30 days for the ads to make it into the rotation?
That wasn't the problem, the ad was approved in 24 hours. I finally gave up on the Coop and removed the ads from my forum. Seemed stupid to be giving away the ad space and getting nothing in return. 4-5 weeks is too long to wait.