Alright, my N800 arrived today!

What I am working on:
Downloading the image file of OS2008. I'm not sure how to install it, but I know I need it.

My questions:

1) When the OS2008 bin file completes, how do I install it?

2) I have the duke3D.grp file and have downloaded the debian installer. I installed it, but when I run the program nothing happens. It thinks about it, then seems to give up. I noticed the OP for the Duke3D thread says to make a new directory to put the GRP in. How do I make a new directory? (thread here)

3) How can I have success with Canola and the stock media player? I tried both and found that only Mplayer will play my movies smoothly.

4) If question 3's answer is "Use Mplayer then" how do I make Mplayer the default media player? (I tried to the solution from here got emelFM2 installed, and could even view the config files mentioned, but I cannot open it. When I double click it, it asks for a command. I figured it would be a simple text file, but it isn't. How can I edit that file?)

Thanks in advance. I am stuck in Egypt for a year with the military and this is my new companion. I am looking forward to watching movies and playing duke3d and quake on this thing.