I'm back again!
I need help

My Xbox don't boot up.
The only dvd it can read is x wizard. I have tried to install with this one unleashX but without dvd it don't boot.
Other dvd in this situation doesn't boot up.
So i have tried with hotswap (the way with i have to softmod first time.)
I have done all backup of everything.
I have create a cd with ndure 3.1 and xboxhd, and insert on it a C: (Ms dash) clean.
So in cd E: is empty (o with UDATA and TDATA for have saves too) and C: content is:
Audio (folder)
fonts (folder)
xboxdashdata.185ead00 (folder)
xodash (folder)
Xbox Book.xtf
Xbox.xtf
xboxdash.xbe
I have hotswapping xbox with my pc.
I have select "create hd from scratc" or something similar, for format and create a new hd from cd.
Cd format C: E: and F: partition and copy files.
When i boot up i have a xbox original, with xbox dash than boot from eject or power button.
Now i think, if i have an xbox like original, i could softmod it like first time!
So i have tried softmod again, i have follow this:
http://forums.xbox-scene.com/index.php?showtopic=496263First time all works, this time NO!
I dont's understand what go wrong.
Xbox boot in MS dash with eject button, but when i try to boot softmod dash with power button i have error.
What can i try??
There is something wrong in C: or in Xbox.... What?