Ok, I downloaded zemufe and installed it.
I start it up, select "Super-Mario-World.smc", then it displays "Please Wait" sideways, then it displays "Please Wait" rightside up, then it goes back to the file browser.
If I try to start snes9x from the console I get:
snes9x: error while loading shared libraries: libSDL-1.2.so.0: cannot load shared object file: No such file or directory
When I look through the filesystem, it turns out that eon-sdl installed the libraries into /home/QtPalmtop/lib/eongames/
So I tried creating a symlink from /home/QtPalmtop/lib, but then I get this error:
Could not initialize SDL(SDL not built with video support)
snes9x: error while loading shared libraries: snes9x: undefined symbol: SDL_FreeSurface