RTFM....Many good folks spent a bunch of time on that document.
There is also a tutorial included with the DG-IV on exactly how to deploy the MTKS-SAT.
Also, one other hint- if you can open the bay doors on the DG-IV, you can deploy the satellite from the cargo bay. Look at
the cargo bay panel closely.
If you still can't do it after that, a nice game of Monopoly might provide less frustration and more enjoyment