lite-on flash advice

have only ever flashed benq's very easy

have been given a lite-on by a friend to flash, have read latest j/f tut on lite-ons and it all looks a bit daunting.
the box has latest dash/b update it has been flashed previously but don't know what with

have no tools, will be using 360 to power the drive

any advice would be much appreciated

cheers