Hi,
Maybe I got it wrong, but I think, that the default roaming profile is stored on the local machine in "c:\documents and settings\default user"
When I need to do some modifications I log in as an "empty" user - creates the things I want. Log out, and log in as administrator - and using My Computer -> Properties -> Advanced -> User Profiles copies from the user I signed in as to the Default User.
/Peder