Am currently working with two separate trust companies. One has Sungard series 7 and the other has Sungard Charlette Navigator. Is there anyone who is connecting to these systems and Quantech 5.0 for trade instructions?

You may want to check with the folks at Corbel because there was some talk that the were building links with some of the Sungard trust accounting systems. I believe they have built one or are building one to the Series 11 system.
Ken Simons or Tom Makeever may have an answer for you. Otherwise, I have not run into anyone who has built links to these TA systems. Good luck!