SiFu2, this is likely to be the easiest solution (if the Xbox hasn't been without power for too long):
1. Get it booting again using the Ndure via xboxhdm tutorial's method *except*:
a} when running Ndure 3.0.exe, *only* have the top plus bottom two options checked
...(that's "Basic Files", "Add Ndure Toolset" and "Create XBOXHDM Installer")
b} replace the `ndure` script it creates (on the PC) with the one linked via the tut thread's 1st post
c} when installing it, use the `ndure` script's Option 2 (*not* 1)
2. Thereafter you can update it to Ndure-complete with 5960 dual-boot as per:http://forums.xbox-scene.com/index.php?act...dpost&p=3346273
(*except* you won't need to do the /E/dash and /E/ndts ftp steps, as "1.abc}" provided them).