Has anyone been able to successfully merge their Yahoo sponsored search account into a Microsoft Adcenter account?

Merged but not successfully. The Yahoo data swung into AdCenter okay but needs a lot of editing. Content is turned on where it shouldn't be, there are multiple import issues with the length of lines for titles, the ads themselves, and the displayed urls. Negative keywords were not imported.

This would be less frustrating except the AdCenter servers are very,very slow; I presume they are overwhelmed with us conversion folks. I did download successfully the desktop application but due to the slow server situation, downloading the campaigns to it has not been successful... server time-outs, "try later"s, etc. I got one small campaign down, but my main campaign fails every time.

Its easy as pie.

You turn off your Yahoo account and add more budget to your bing Adcenter account - done!

I honestly have never found Yahoo to produce quality and only increase the risk of PPC fraud and poor performance. We had turned YSM campaigns down to a trickle for years, turning it off altogether is just fine. Now we only worry about what Adcenters performance will be with this transition.

My question would be, how can we block our ads on Adcenter from running on anything Yahoo?

Harsh eh?