What I said earlier still holds true. The User Accounts applet in Control Panel
won't allow you to create or manage an account that's a member of the Power
Users group. You'll have to rely on the Local Users and Groups console. See the
instructions I provided in my earlier response for how that's done.
After becoming a member of the Power Users group, the account will show up in
the User Accounts applet as an Unknown account type. Take a look at the
Testpower account shown here.
http://home.comcast.net/~nepatsfan2005/User_Accounts.JPG
If you want to verify that an account is a member of the Power Users group, you
can do so by checking the "Member Of" page of the accounts properties sheet. An
alternative is to open a command prompt window (Start -> Run -> cmd.exe) and
enter the following command,
net localgroup "power users"
If you're looking for more information on this subject, you might want to open
Help and Support from your Start menu and enter Local Users and Groups concepts
in the Search box. Take a look at the information under the Suggested Topics
header. You can also do a Google search on the topic of Local Users and Groups
console.
As for restricting access to files, you're going to have to become familiar with
the concept of NTFS permissions. If you want more info on this topic, take a
look at this article for starters.
Windows XP Professional File Sharing
http://www.practicallynetworked.com/sharing/xp_filesharing/index.htm
Good luck
Nepatsfan