In order to use PXE you must create a PXE boot menu item and associated boot image.
Configurations and boot images created in Boot Disk Creator are not available in PXE. You must create the configurations within the PXE manager.
In Ghost Solution Suite console click:
Tools - PXE Configuration
In the "Boot Menu Options for PXE Server" panel you will see all of the boot menu options that should appear when you attempt to boot to PXE. If you only see "Next Device (BIOS/EFI)" that means you need to create a new configuration. To create a new configuration follow these steps:
(In the PXE Configuration Utility, on the Boot Menu tab)