all the settings are showing and working fine in game but ive still got the old stupid ground crew any ideas cos i was going to buy this after i got use to it
From this message, it seems you have both the Addon Manager and the Couatl menus so, the software is running.
But from the rest of your message, it seems you expected to see changes to the default ground vehicles automatically applied. They are not, you need to enable GSX using its hotkey (CTRL+F12 by default).