I did some searches on fishing, but can't quite puzzle out how you are meant to do it (I use ISBoxer).

Is this correct:

1) Cast fishing
2) Turn on mouse broadcast and put the cursor over the lure on the slave(s)
3) Turn off mouse boradcast
4) Set mouse over lure on main
5) When anyone gets a bite, hit interract with target
6) Repeat 5 until all have fished
7) Repeat from 1

Thanks!