First you'll need 8psk module to upgrade your unit.
The module open the HD channels on DN.
You can get dish1000.2 and get 110,119 and 129(most hd channels from DN)
Look at here also
http://www.abadss.com/forum/29-fta-a...-1000-2-a.html
You can check if the old dish from DN is a Dish500,if yes,
You can use it to get BEV 91 and 82(hd channels from BEV,you don't need the 8psk module to watch 82).
Also if you go for a dish1000.2 it have a extra input so you can use it too with another dish and maybe get your international channels.