As with other plugins, you must quit and then
restart Netscape before the plug-ins will take effect.
If you get a window with a little puzzle peice instead of a 3d file,
something is missing. If you get a big black space or
a small black space with a white line around it,
wait a bit, a 3DMF file is coming in. When the file emerges, you may control
navigation with a toolbar. To receive the toolbar,
click in the center of the 3d window. With most 3d browsers,
navigation is assisted by keys (eg. shift, -, or =).
If you have a 3d browser already installed, click in the void space,
navigational tools will appear so that you may move inside the form above.
All 3d constructions in this site are 3dmf files (in binary format for Mac people)
The site does have links to other sites with 3D files in VRML's text format.