Windows Server 2003 OEM license

Hello,

How do I use the OEM license which came with the server? We bought the server with Windows 2003, Std installed. I don’t have the install discs and currently the server has been installed with an msdn license after reformatting. It is Dell poweredge 1850 no longer under warranty. I tried using sysprep, and it didn’t work.

Appreciate any help.

Thanks,
D