Using LiveUser with vBulletin and other 3rd party products

Hi,

I'm trying to pick up LiveUser and have some questions/comments i'd like 
to share.
My plan is to use LiveUser as a means of logging in to various systems 
at once, for example vBulletin and a clients user database.
I'll first say that I have migrated all users from the clients user 
database across into the vbulletin database so that the logins work 
through vbulletin and the rest of the site independantly. I've also 
managed to authenticate in LiveUser, this happens if the users 
credentials match the one of storage container, they are logged in. When 
i say logged in, LiveUser logs in but doesnt create the sessions 
necessary for vbulletin to treat the user as logged in, I was wondering 
if anyone has suggestions on dealing with this.
LiveUser doesnt seem to pull out the fields off any additional 
containers when logging in. It must just check the first and if they 
authenticate, not bother with the rest. Is there a way to make it do 
this, obviously i need the rest of the information before i can start 
creating the session vBulletin expects, the solution may just be to get 
it all independantly.

Next up is the user admin, its hard to tell if LiveUser can do this or 
not, but if a user for example changes their email address we want that 
to go across all containers. I'm still looking into the admin of 
liveuser but if anyone has tips on how to achieve this it'd be great.

Thanks for listening, so far i'm really impressed with LiveUser and will 
certainly use this as a base for my application.

Kind Regards,
David Arthur