no J3D in java.library.path

I'm getting this when I try to run the examples.  I searched the archive and
see that it's a fairly common problem.  My question - where on Sun's Java3D
pages can I read how to properly install Java3D?  Currently I have it installed
on my NT's C: drive, while jdk1.2.1 is on my D: drive.  I'm assuming this is a

Question #2:  when I get this problem fixed, can I expect the Spline pgm to
work (in paoloa\spline) on my NT box - or would it be a Solaris-only pgm?