It is possible to put Evolution X on X-Box without linking to PC.
Create 2 folders, one Games the other Apps.
1st get all of the applications etc... that you want but you need to ensure that they are not ISO's. You need them so that you can view the default.xbe file. Put them in the relevant folders as you would if you were using an FTP eg
Evolution X would be in a folder called Evox which is in the Apps Folder
DVD Region X would be in the apps folder then DVDX folder you create. Continue to put the other apps in etc..... Then edit the Menu.ini on the PC and put in apps folder
Burn them to the same disc as Xboxplorer
Now put the disc in the X-Box, Xboxplorer should boot.
Rename Xboxdash.exe to zxboxdash.exe (Mines msdash as I have it in my evox menu so I can access it still)
Copy the default.xbe file from the disc in drive D: to drive C: Rename it to xboxdash.xbe. Copy Menu.ini from disc again to drive C:
Then copy the apps/games folders do drive E:
Reboot the machine and that should be it You have done it without the need to link to a PC.
Not the clearest destructions I know, I am in a rush but it works.
Correct me if any mistakes here, personally I use the PC method, but this does work.