In Windows 2000 and XP, the ability to manage fonts via ATM is limited to administrators. However, you can circumvent the problem by editing the registry.
Launch the Registry Editor. You will use the editor RegEdt32.exe located in the System32 folder, NOT the "usual" RegEdit most users are familiar with, which is in the WinNT folder.
Select the following registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Fonts
Choose Security > Permissions. The Permissions for Fonts dialog box appears.
Choose Advanced. The Access Control Settings for Fonts dialog box appears. This dialog lists the various users of the computer and determines what they can do (relative to the issue at hand).
In the Permissions Entries box, select the user's group, and then click the View/Edit button.
I must note here that I have never experimented with simply using the "Everyone" user; it seems like it should work. If it works for you, let me know!
Select the Allow check box for the "Set Value" and "Create Subkeys" permissions.
Save the changes and reboot.