You've probably missed a file somewhere, I'll make a list of what I've got in my Wolfenstein folder and I'll post it on here later.
Here you go:
AUDIOHED.SOD
audiohed.wl6
AUDIOT.SOD
audiot.wl6
Changes (Text Document)
config.sod
config.wl6
GAMEMAPS.SOD
gamemaps.wl6
libgcc_s.so.1
libmikmod.so.2
MAPHEAD.SOD
maphead.wl6
README (Text Document)
README-GP2X (Text Document)
VGADICT.SOD
vgadict.wl6
VGAGRAPH.SOD
vgagraph.wl6
VGAHEAD.SOD
vgahead.wl6
VSWAP.SOD
vswap.wl6
Wolf4SDL_SOD (GPE File)
Wolf4SDL_SOD_start (GPE File)
Wolf4SDL_WL6 (GPE File)
Wolf4SDL_WL6_start (GPE File)
The SOD files are only needed for Spear Of Destiny, but the wl6 ones are needed for Wolfenstein 3D. Make sure you use the Wolf4SDL_WL6_start.gpe to start it.
Cheers, Neil