Roaming profiles between XP & Vista

Preparing to migrate my first domain with Win XP clients to Vista. Roaming
profiles are in use. Users do roam, and until migration is complete, roaming
profiles must interoperate between XP & Vista.

Per this article--

http://technet2.microsoft.com/Window....mspx?mfr=true

--to roam certain folders (I'll use Favorites as an example because that's
where I first observed it), I should use GPMC on a Vista computer to
redirect the Favorites folder to the Favorites folder in the v1 roaming
profile folder. Then XP & Vista can both use the same folder. If you haven't
seen the article, it's the last subject covered.

This works for computers that are always connected. But for notebooks, it
does not work when they're offline. When they're offline, the Favorites
folder can't be accessed, because, per this article--

http://support.microsoft.com/kb/842007

--one must disable offline files on user profile shares, and we have done
so.

I can live with the user hive not migrating (though I don't like it much),
but not having Favorites and other key data folders not roam is going to
cause a lot of notebook users a lot of pain...starting with me! Is there a
solution?

--
Jeff Vandervoort
JRVsystems
http://www.jrvsystems.com