Switch domains for Google Apps authentication

[Kyle Baley]

We're using Google Apps as the authentication mechanism for one of our apps. I know we can't switch authentication methods but can I switch the domain that it's tied to? We're able to add users to it from the new domain and log in to the AppEngine console but we have trouble accessing URLs that require admin rights. In these cases, we are redirected to a domain-specific login page (e.g. http://www.google.com/a/olddomain.com). Changing the URL manually to the new URL doesn't work.