if you are using the one posted at the beginning of the thread, you need to sign it with -audio.
"Yes, this is just as stable as the cd-swap exploit. If you do the code sequence wrong, it will just give a "not enough free space" error and not corrupt your st.db. So now you just boot with no audio cd in the xbox and do the following after replacing your original st.db and renaming "linux.xbe" in e: to "exploit" in e:
Go into Music, then don't choose Audio CD but the No-name soundtrack below
it, Copy, Copy, New Soundtrack, Done.
The pressed keys are : A, Down, A, Down, A, Right, Right, A, A, A"