I should also add, this will put some stuff into the programs list on your local workstation. Just leave them alone. If you uninstall the Creo stuff you see on your local workstation, the network installation will not run properly.
In Reply to Don Senchuk:
While the drives do not show in the pull-down during installation, you can copy the drive letter/path and paste it into the location bar in the installer. Hit enter. It should see it then.
It's not obvious, but this will work. May have to do the same thing if you ever need to 'Customize Existing Software' too.