OK, here is what I am doing.
1. browsing to forum/admin.asp and logon as Admin
2. Go to Membership Administration
3. Click on a user I want to change group membership on
4. Click the button at the bottom that says "Edit this members forum settings". Before I click the button, I notice at the top that there is a link to Admin and Hidden Topics along with the other links (Active Topics, Memberlist, etc.).
5. Once I click the button, I am directed to the Member Control Panel Menu and the Admin link above is gone.
I think this is where I am having the problem. If I click Edit Profile, the next page shows the username as my Windows username instead of the user I clicked to edit. How do I logon as Admin without it logging me in as my Windows username?