Go to http://www.mydish.com/support/manuals and choose the receiver you have. If you don have an account, it is free to set one up...you just need the account number and receiver number. (press "menu" twice and you will see the receiver R00 number and S00 Numbers listed) Hope this helps.
There are several configurations a tech might connect the sat cable to your rcvr.
simple way, take the sat cable from the wall outlet n connect it to a silver switch there should be 3 wires coming from triplexor (looks like a silver 3 way splitter) 2 sat lines to sat input on rcvr 1 vhf/uhf to tv 2 output (should be a yellow center on barrel)