Windows 200 users

Go to the below link, You have all what is needed to upgrade your OS to Windows Server 2003, You have the migration tools download link on this page, select the migration tool depending on Whether you are using Active Directory or Local Users. Ready the Guide carefully. Before you do anything first plan what you are going to do and then execute the plan step by step. Upgrading is not just like that. Because you might get problems later. In order to save your time Plan what you want to do and how you are going to do. Then execute the work as planned. This will save you from spending hour rectifing problem you get after transfer or migration.
http://www.microsoft.com/windowsserver2003/upgrading/nt4/tooldocs/default.mspx
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