what to do how to get more ram memory

I have a mpc1000 now and I've been sampling different things to my style of production and creativity. i have the 128 ram card installed for long time ever since i have started programming with the mpc1000. and now its telling me insufficient memory i know i been using up all my memory now. but how do i get more ram memory.

you're on the 500 forum here but this is the same ram expansion!!!