Could you provide some actual technical information in relation to your problem?
What version of Ghost?
Have you added and selected Vista 32 bit drivers for the HP 8570W in Ghost Boot Wizard so that your WinPE boot has the necesary drivers for the NIC and the hard disk controller? (WinPE is based on Vista kernel hence needs Vista drivers regardless of what O/S is on the HP)
Since you cannot connect, are you getting any error messages you could share with us?
Is your HP getting an IP address?