I think the bracket is just upside down. Flip it, still keep it to the front engine plate side and you should be fine. Also, I think you should unhook the hydraulic hose, pass the slave cylinder in from the back of the bracket, then hook the hose back up. That should get the cylinder where you need it.
edit: Marv beat me to it. Not 100% positive the bracket is upside down, but if the slave isn't lining up with the clutch arm then it is.
edit 2: search for a thread on this, we had one in the last year that had a pic of a TR6 setup.