Wish that i could help you. I have done a good number of slaves for leaking and the worst problem that I have run into is bleeding the systems. Vacuum bleeding from the reservior works the best, basicly put the hydraulic system into a vacuum at the reservior until a good pedal is gotten.
The fact that the (assuming as I am not 100% clear) hydraulic line blew at the connection at the trans means you have a problem right at the slave. Unless the line was not set in place properly.
It has been a few years since I touched on of these but as I recall the line from the master has a valve in it so that you can disconnect the line from the slave hook up and not drain the fluid. If the line is not in position properly (or there is a problem with that part of the line) then you would/could get a situation like you have.
A lousy day in Paradise is still a day in Paradise.