Hi three_dim,
I'm sorry you are having a negative experience with adCenter. Without knowing the details of your situation I'm unable to explain why you weren't seeing impressions -- I agree that is frustrating. If you email us at blogadcr @ microsoft.com and tell us your account #, we can take a look into your specific situation to help find out what's been going on, find an explanation, and help to resolve it. Also please include any support ticket numbers so that we can follow up with the Support team.
I hope you'll contact us so we can look into this further, as we want our customers to be happy with adCenter.
Thanks,
Carolyn