JP1 Remotes

I did the "learn" on the remote, and it comes up "DishPlayer(old)". It doesn't say any more.

Will the 0775 work for this?

If so, how do I get it into the IR program to upload to the remote without losing the rest of the programming? I think I would just copy and paste it, but am unsure where to ...

I am a noobie, and have searched for ways to identify my satellite receiver in order to find a code list for it. I am a little embarrassed as I have searched, but don't "think" I have found it. Here is what it says on the back:

EchoStar
Model DE01; DE04
DP 301

The remote says:
IR REMOTE 103602

I ...