Just bought used Trex 450 and Hitec Eclipse 7 radio. Does anyone have a program ( is that the right description?) for a newbie? Also any suggestions on specific settings since the radio has so many options? Thanks for any help you can offer.

Try this site. When I had T-Rex this site was a big help.
http://www.trextuning.com/index.php

Here's another link if you don't have the manual.
http://www.align.com.tw/html/en/asse...x450xen_2.html