HELP installing firmware

im trying to install firmware for my dvr-106d pioneer drive and when i install it just to the default folder it tells me that the target was not found. ive tried v1.07 and 1.08 which i got directly from the pioneer webpage. any ideas??? oh yeah im also having the problem where i cant write any dvd’s whatsoever burns cd’s just fine, reads cd and dvd, ive only ever tried to burn a dvd once b4 and it worked but i bought a pack of dvd’s that are 8x and my drive is curently 2.4x so i wanted to upgrade the firmware. im hoping the firmware will also solve my dvd burning problem.