Gabriel BR LIVE

I've been waiting for a tool like this one for years! Thank you very much! But I'm with a problem: The endless loading screen. Couldn't get anywhere even following the instructions ("Try formatting using Gui Format32, or try placing xenon.elf and symbols.elf on root of xbox’s internal hdd. Place the folder on the root of a usb (ntfs, fat), and then run xenon.elf from the internal harddrive via Dashlaunch."). Does anybody knows how do I fix this?