I did this just a month or two ago, for my Yamaha Motif (which is also not on “the list”).
Away from DAW, but what I did was just put it in each of the folders that have other patchscript files, one at a time, until I could access my Motif banks from the MIDI track I/O dialog.
I do remember, the folder that ultimately worked had a name like “Old” or “Unsupported” or “Legacy”, some kind of what-am-I-chopped-liver? kind of name.
If no-one comes along with something more specific, and if that doesn’t work for you, post back and I’ll check it out in my DAW.
EDIT: dug up an old post of mine for how to get it into C6.5 … worth trying this one first maybe …
\
Copy your text file to the following:
Documents and Settings/Your Name/Application Data/Steinberg/Cubase /scripts/patch name/
Put the file in the “Inactive” folder.
Then use the “Install Device”
button of the MIDI device manager in cubase