Hello,
Thank you for your post! I would suggest posting your question in one of the Windows Live Developer Center > Windows Live Developer Forums > Bing Maps: Map Control and Web services Development located here:
http://social.msdn.microsoft.com/Forums/en/vemapcontroldev/threads
Hope this helps you.
Have a great day!
Thanks!
Dinesh
Tier 2 Application Support
Server and Tools Online Operations Team