I will assume you are using Ghost Solution Suite 2.5 and have used LiveUpdate to bring your version to 11.5.1.2266
I will also assume that your boot environment is WinPE as this offers the highest compatibility and support with modern hardware.
The version of WinPE used in GSS 2.5 is version 2, which is based on the Vista 32 bit kernel. When WinPE boots, it needs to be able to communicate via the NIC and also to access the hard disk subsystem on your machine. So you need to add the Vista 32 bit drivers for the NIC in your system, and you may also need to add the necessary SATA drivers for your hard disk subsystem if WinPE does not recognise your SATA chipset natively.
As Ghosti mentioned above, the Ghost Boot Wizard is the tool which enables you to add driver support for your hardware.