Sadly due to the way Gamebase works there is no other way to get it working other than having a manual installation of it.
The best I can do is provide documentation on getting it all up and running - the client side installation is around 15MB so shouldn't be too problematic even on the most basic of systems. Everything else can then be run from the DVD.
I really am sorry about this and if there was another way around it then I would use it - the Gamebase forums are sadly very lacking when it comes to support as well.
Anyway this means now that all I'm waiting on is a frontend from Sarek2K and then job done.
As soon as the frontend is done it's going out in the post. I'll post the PDF here later of what you have to do and if anyone has any problems with this then please let me know.