VBA 1.8 games not saving

can somone please tell me how to get my games to save because they wont do it for example i got really far in advance wars last nite saved multiple tims but when i turned it of and back on there was no save can somone help please

Change the save type by going Options, Emulator then Save Type. If that doesn't work, use a different version of VBA, 1.8 is a beta.