OK, sorry of the n00b question, but I have spent some time googling for my problem. Here it is:
Just got the M3 Lite w/ 1GB micro SD from Echostore.
I used the M3 Game Manager loaded on my XP to "write GBA" every game I've thrown on there:
BruceLee.gba
WarioLand_4.gba
FFDawnOfSouls.gba...