Dear James :
Note that our DEM Module should support the 10m USGS DEM and user interpolated DEM. However, the TIN would not be supported by the DEM Module. You would need to get our DTM Module for that.
If you have any additional questions or need any further information, please contact me again.
Sincerely,
Chris E. Maeder, M.S.
Senior Technical Engineer
chris.maeder@bossintl.com