Here are a few links to Lightwave tutorials that I used long ago, when I first started.

(I wonder how many are still up and running)

http://www.ap3d.com/tutorials (Space setup, spaceship detail)

http://www.speedline.ca/lightwave/htdocs/ (3D Animation)

http://www.flay.com/

http://www.newtek.com/education/tutorials/ (BIG list of other tutorials)

http://www.lightsource-3d.com/

http://root.wpcusrgrp.org/~scameron/lightwavetutorials.htm (BIG list of other tutorials)

http://www.stormvision.net/index2.htm

http://earthwormjim.free.fr/ (explosions)

http://www.speedline.ca/lightwave/tutorials/tutorial2.html (The earth)