Yeti, if your front sprocket is held in place with the "2 screw and plate" method, you might be able to mount the speed sensor on the front sprocket cover, picking up those screw heads. If your front sprocket is held in place with a large single nut, then just ignore the rest.
The number of pulses per revolution is then given by the sprocket ratio, front to rear. Going by an average ratio, you get about 5 pulses per revolution of the rear wheel. However, it would be a fractional number, which the dash might not be able to deal with. Check with Translogic.
Some Hondas have this arrangement, so it can work.
If you have to mount it on the rear wheel, try to mount it on the rear caliper retaining bracket. That way, you won't have to deal with the eccentric adjuster problem.
Here is how it's done on the 998F03:
[Edited on 17-3-2005 by Felix]