Hi Antonio,
doing a hardware refresh is quite a big task you have there and there's a couple of ways you could go.
Do you stay with the OS and Altiris Version you have, and which one is it? Do you wanna P2V the Altiris System or is it already a Virtual Machine, because you said clone it in vmware?
Could you please clear things up, if you just want to change the HW Version in VMware or do a "real" HW refresh.