I'm a little confused about samba HEAD, Win98, Winnt en Domain Administrator

[Samuel Liddicott]

I my domainuser.map is

root=sam

and my windows login is sam, does this make me administrator and run all my
sessions as root?

If my domaingroup.map is

adm= "Domain Admins"

How can I belong to a group called "Domain Admins" in order for it to be
translated to the unix group "adm" ?

And as for localgroup.map

wheel = BUILTIN\Administrators

How do I fit into either one of those?

I'm currently reading a 1500 page WINNT book to try and understand all this!

Sam