Hi guys following are some useful links for ray fire tutorials
http://www.mirvadim.com/index.php?id=tutorials
http://cg.glacierise.com/blog/?page_id=126
RayFire Tool 1.44 for 3DSMax | 15 MB
RayFire Tool gives you the ability to shoot, destroy, demolish, wreck, break down, wreak havoc, blow up, burst, detonate, explode and do other similar things you have always dreamed of to do in Max.
Rapidshare:
http://rapidshare.com/files/244458479/rft144.rar
Hotfile:
http://hotfile.com/dl/6610081/77a3dbb/rft144.rar.html