Looking into this, thanks for the info.
Thanks for pointing this out. We've deployed a couple of fixes, here's how you should configure your app:
Publisher Name: will be set to what you have set in the <author></author> field in config.xml
Display Name: will be what you have set in the <name></name> field in config.xml
Package Identity Name: added a new preference: windows-identity-name. retrieve this value from App Management --> App Identity in the Dev Center
Package Family Name: will be generated based on the identity name
So as long as you have your Publisher ID set on Build and the following set to the correct values in your config.xml (sample values below):
<author>Adobe</author> <name>PhoneGap Build App</name> <preference name="windows-identity-name" value="PhonegapBuild.PhoneGapBuild" />
submission should be successful. Let us know if you still see errors.