ms0 and flash0 custom folders

[serio]

since i upgraded to win7 64 bit, i've been keeping both 32 and 64 bit versions of jpcsp since both have their good/bad points.

i'd like both to use the same ms0 and flash0 folders, so that i wouldn't have to keep 2 copies of the same thing and constantly synchronize stuff, and also to prevent accidentaly overwriting flash0 with the stuff from the zip.

is it possible to add that?