All the mosis files are usually installed in /net/sw/mosis/IBM_PDK. So, for version 7WL, the files are in /net/sw/mosis/IBM_PDK/bicmos7wl. In that directory, there is a directory called:
V1.5.0.4DM/cdslib/examples
I made a tarfile of these example files, called new_workarea.tar and put in here:
/net/sw/mosis/IBM_PDK/bicmos7wl/V1.5.0.4DM/new_workarea.tar
Extract this file to whatever the working directory should be. Also, copy the display.drf file from /net/sw/mosis/IBM_PDK/bicmos7wl/V1.5.0.4DM/cdslib/bicmos7wl to the working directory.