Help on a script to import data from a binary graphics file

Could a kind soul point me to an example MAXScript for importing
a file format into 3dsmax.  I've followed the simple HowTo pages
in the help documentation to just pull in vertices and faces and I
see a "phantom" but nothing real.  A worked example using any 
3D format would be very appreciated.  Looking especially to
pull in bone positions, assigning vertices to bones, and vertex
weighting.  Any help would be much appreciated.

Cheers,