You could write a custom builder for CruiseControl.net. You would be using CruiseControl.net on the front end, and the back end would be using VisBuildPro.
Here's the how-to:
http://confluence.public.thoughtwork...ion?pageId=441
Alternately, you can use the CruiseControl.net command-line builder to call VisBuildPro.
http://confluence.public.thoughtwork...d+Line+Builder