Cubase SX3 and GEM S3 Turbo keyboard instrument definition

[Maximvs]

Hi There

I am trying to find if there is a place where I can download or purchase an xml patch or instrument definition for my Keyboard GEM S3 Turbo to work in Cubase SX3.

I am thinking of buying Cubase sx3 soon and in the main time I had a look at it at my friend's studio and noticed that GEM is not included in the instrument definitions that Cubase includes in the package.
I am wondering if there are already made xml patches that will work with my keyboard or I need to create one from scratch.

Any help would be very much appreciated.

Thanks Max