Are goes a newbie question

How do I install Mythbuntu on my old Dell Inspiron 1720 with Ubuntu 13?

I have downloaded the Mythbuntu 12.04.3 amd64 file (default choice). Is this the right file since I am running an Intel chip, not AMD?

Next, I have installed the Mythbuntu Control Center app. It appears in my Applications menu but does not load when I click on it.

I am using Ubuntu 13.04 with the latest updates from the system.

Oh and, yes, I want to watch TV using my Win-TV HVR 950q.