Just to clarify things to "newer" Softimage users: the content vast.ws
graciously placed online (and were made available by Rork as a download and by AceMastermind on youtube) were the so-called "Softimage XSI Production Series DVDs" (read a review here
) that were made accompanying version 4 of XSI (but are for the most part still very valuable). Vast.ws, however stopped being available for viewers outside of the US (&Canada?) at some point - and as an European I have no way to check if they are still available inside of the US (&Canada).
Parts of the "Production Series" found their way to the original Softimage website, but that doesn't exist either anymore, now does it?
PS - When watching this, keep in mind the Particles mentioned here do not exist anymore in the latest versions of Softimage (as we've got ICE now)