That is funny, considering that document is like 4 years old hehe... Looks like Rick should have hired proofreaders to go over things

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Your current version, UBB.Classic which is a Perl based forum solution, reached End of Life some time ago (just prior to when v7 was released on October 5, 2006; no new features are developed for it, and documentation/support is limited at best.
As Ruben pointed out, the new version is
UBB.threads and it is a PHP/MySQL based forum product which takes up significantly less resources on the hosted machine; support is current and it's actively being developed (now).