this Zip file should contain the following files for Exploring InRoads:

_readme.txt
civil-xl.ini
civil_v7-xl.cel
civil_v8-xl.cel
mesapark_v84.alg
mesapark_v84.dtm
working.dgn  (v8)
working_autocad.dwg
working_v7.dgn
working_v8.dgn
wysiwyg-xl.ini

This bundle is optimized for MicroStation v8.  

For MicroStation versions prior to v8, use the working_v7.dgn file.  Certain defaults in InRoads are optimized for v7.  If anything displays really ugly, look for a Preference for that command that is suffixed by "_v8.2".

AutoCAD users: use the working_autocad.dwg file.  Blocks have not been included with this data bundle.  This has the effect of blocks not automatically showing up in cross section, etc.  Call for blocks.