how to make f and g drive visible with xplorer 360 on pc?

question:

i am trying to backup a 200 gig harddrive. on the f and g drive it is full with movies. i was hoping to use the xplorer360 utility. i unlocked the harddrive, it is recognized by the program. but only the c and e partitions are visible. is there another way to copy f and g over via windows? or to make f and g visible? ftp'ing things over will take forever, i was hoping copying them over another way.

btw. is it possible to have one large F drive (over 137 gig, i only one extra partition. i want to combine both the f and g partition (off course after i have backed them up!)