Hmmm, I see that your /Extra folder resides in your Leopard partition and is messed up with duplicate kexts, if you just dragged them over they'll most likely have wrong permissions too. Kernel flags are messed too.
You also want to multiboot windows<-->X too, so better take 1 step @ a time:
Take a look
here for a vanilla
/Extra/com.apple.Boot.plist and edit your current one accordingly.
This will involve a lengthy step by step process, are you familiar with the Terminal?
Can you boot to Windows ?
I guess that you previously installed Chameleon via the Installer.pkg, right?
Meanwhile, someone with a Dell laptop might give you any hardware-related tips