hey, this is what i did on my 700bt
1- i formatted the 2gig build in sd (no more "My Flash Drive" at this point on the navi system )
2- rebooted system to make sure nothing would load
3- placed the 2 WINCE files from the link in the 1st page on this discussion link on a SD (NO OTHER FILES on the sd)
4- power off, insert sd, power on, hold all at the same time (reset,eject,menu,map) for 5 sec
5- let go of the reset button, wait 1 sec, let go of the eject button now
6- should now see a blue window, let go of the map/menu buttons
7- insert following via volume control (up up down menu