Replacing SCO Openserver with a Windows OS

My company purchased a company who used SCO Openserver on a HP Proliant ML350 G4p. I would like to reconfigure this server with Windows 2003 however I can’t figure out how to complete this task. I have tried using a HP SmartStart CD veersions 8.30 & 8.50 for Windows however it continues to boot to a command prompt. I even tried deleting the logical drive partition and creating a new one. Can anyone assist me? Thanks