Hello Trevor,
I suggest you to buy the oficial driver from Torsten. It works great. I had
problems with the beta version too but that was because I had a revision 'D'
drive (made in April) or M06 type.
Since I received the Official driver I it worked great for me. Installation
took a little more than 3 minutes for me (including reboot).
I also installed OS/2 2.1 march beta with it.
I hope it gives you some more information
greetings,
Martin Vermeer