This is from an XP system, but I understand that W2K is very similar.
From control panel, select Administrative Tools.
From there, select Computer Management,
disk managment.
Scroll to the drive,
right click on the drive and select properties.
One of the options will be to set the drive letter.
The following comes from the W2K tips section at www.onecomputerguy.com
If you want to change the letters assigned to your fixed or removable drives:
Right Click on My Computer
Select Manage
Select Disk Management
For a Removable Disk:
In the lower, right hand panel, right click on the Disk or CD ROM #
Select Change Drive Letter and Path
Click on the Edit button
Enter in the letter you want to use
Enabling CD AutoRun
Added 6/22/01
To enable CD's automatically running when you insert them:
Start Regedit
Go to HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ CDRom
Make sure the key reads Autorun=1
To disable Autorun, set the key value to 0
Chas