Insufficient information provided to give direct help, so will give you general advice. Assuming you are using Ghost 11.5.1.2266, use WinPE as your boot environment (as PCDOS does not support SATA (which is now the hard disk and optical standard interface).
The drivers you need to add to WinPE using the Ghost Boot Wizard are the VISTA 32 BIT DRIVERS, because WinPE in Ghost is based on the Vista kernel. Once you have added the drivers (which must include a .INF, .CAT and .SYS file as a minimum), you must then select the added drivers in Ghost Boot Wizard before creating a new WinPE boot image.
My assumption of what is not working (in the absence of any error message details in your posting) is that the NIC in your E6520 is not mounted correctly and therefore cannot achieve a network link with the server.