briand: Isn't that backwards? /media/mmc1 is the external card, and /media/mmc2 the internal one, at least it is on my n800 OS2008.

lemmy: whilst the cp command from an xterm is easiest, and not too arcane , you might also try an alternative file mugger, e.g. the powerful emelFM2:

http://maemo.org/downloads/product/OS2008/emelfm2/

although a little care needs to be taken, as it is quite a powerful filemgr.