Ok, it did work now, as I could start the driver manually.
Next problem: After address book syncing Mac->Mobile Device, a substiantial number of contacts on the Wizard is doubled. This is to be expected, I suppose, as the contacts where written to the Wizard by Missing Sync a whlie ago, and SyncMate might not recognize everything.
The problem is that there seems to be no option to delete all contacts from the mobile device before syncing. It would be a pain to do that manually on the Wizard, as I would have to delete over 300 contacts one by one. There appears to be no way of selecting multiple contacts for deletion.