Adding Groups / Permissions to NT User in ASP

Hi folks...

I am writing a web page where an administrator can log on and add/delete/modify users.  The creation of a user works fine with the following code....

Dim oDomain, oUser,UserName

set oDomain = GetObject("WinNT://Paperless")
UserName = Trim(Request.Form("lblUsr"))
set oUser = oDomain.Create("User",UserName)

oUser.SetInfo
oUser.SetPassword(Request.Form("lblPW"))
oUser.SetInfo

Response.Write("User added...")

Here's my question (so far)

I need to add the groups to this user that had been created...

lblPW is the user's password (previous form)
lblUsr is the user's login Name (previous form)

I have the main group which is drpLevel (drop box from previous form)
and also a bunch of groups which is C1 (checkboxes previous form)

The adding the users works fine, but they must be in the groups.  I put the value in the checkbox on the previous form, but I am having a tough time figuring out how to add them to the groups.  I found on a PAQ the following code...

Dim Group as IADsGroup
Set Group = GetObject("WinNT://MyDomain/Groups/Administrators")
Group.Remove("WinNT://MyDomain/Users/UserA")
Group.Remove("WinNT://MyDomain/Users/UserB")

the error I got was the Dim Group Decloration (error '80005000')

I figure why this didn't work was because I may not have set up the ADSI correctly, or I haven't installed another component.  (I replaced the Remove above with Add, but never got to that point with the error on Dim Group line.

I hope that's enough information.