Suggestion: Ad Scheduling Idea I've seen this function on my old radio station's website. You could schedule when an ad campaign starts, ends, and what ad position on the site the ad would run in. Plus, you could add more ad positions to blocks if needed. I don't know if anyone else has brought this up, but I thought I'd share.
You could install an adserver like OpenX in the meantime, but I guess there will be issues with GoDaddy again