According to this page, it appears you can run ads like AdSense/AdBrite/Clicksor on the same page? What is the criteria to make it so that it is different from AdSense ads? Just different color? https://www.google.com/adsense/support/bin/answer.py?hl=en&answer=32849
In the TOS it just says ads may not look like googles. You can press it, but ultimately it's up to them to decide if they will continue with you or terminate your account. Googles idea of fair has nothing to do with what you think.
Not a very helpful response. Are there any real examples of acceptable practices to differentiate the ads? Such as changing color of the ad / adding border, etc. For example Google image ads look similar to banner ads, how would you make it so it does not look like Google ads?