Neil Turner's "9 steps to a quicker MT3.1x installation" is about making a Movable Type installation serve pages faster, not how to get the installation process done in less time.
C'mon, tell me you didn't read it the same way.
In any event, I found the majority of the tips relatively obvious, e.g. excise lots of conditional parts of default templates, but there are one or two gems in there like trimming down .htaccess