i have been trying to flash my xbox 360......it has the benq drive in it.....i installed xbins,iprep, all my firmtools...and everything..... in my computer..i have a emachine model t3882....in the bios....i dont see where i can make the usb boot.....all i have in my boot order is cd-dvd rom..and harddrive.......ive watch the vidoes on how to do it..i have the via raid sata cable that i ordered.....im at the point..where i dont know which way to go......i cant find dos? i dont know how to use the ntfs cd......but my iprep said ok when i tried to make the f drive bootable....can someone help me....the mfd on this emachine is 06..i thought for sure it would boot to usb...i tried installing the hp usb storage..and key thing...but dont know how to use it?

if someone could help me out..im going crazy...thanks