As I hadn't posted any queries for a few days (Iwas trying to keep a low profile)  I have been having great fun downloading some of the wonderful free stuff which you all kindly donated, but I have hit a big brick wall.  A lot of the objects, when opened in Bryce 7, are just the standard dull grey material.  And even though the contributers have included a material file with the .obj, I haven't been able to tie them together.  Is there a tutorial available, preferably one that is written in words of two syllabells, that will take my hand and guide me through the process.

All your previous advice is being put to good use.