Any suggestions on programs or anything that i could use to get access to my backend would be great. I am just really confused on what to do next.
I would suggest that if you are not going to have any Media Directors then you do not really want to use linuxMCE. It sounds like you are just after a MythTV backend, and then the xbox would be your frontend machine. I would investigate some of the MythTV focussed distributions or just install MythTV in Ubuntu. LinuxMCE forms a wrapper around lots of standard applications, including MythTV, and will tend to make it harder if all you want is MythTV.