Apologies for resurrecting this.
I have the same problem, and can't seem to be able to find 64bit drivers (I run a 64bit OS for computation and development purposes).
I'm a bit keen to start doing a bit of Classpad development on my spare time, so this was really annoying me.
My solution was to install 32bit Windows XP under a small VMWare image. Not too intrusive, not as much hassle as dual booting, and seems to work fine (after you tell your host OS to ignore any further connection of your classpad and stop searching for drivers).
You'll need the following:
VMWare Player.
A VMWare machine image, which you can create
here.
A copy of an OS (Windows XP in my case), which you can get from your local sysadmin

Possibly the <{GNULINUX}> tarball of
VMWare Worstation (for extracting a VMTools ISO). Further description
here. I needed this to get networking running.