[Unattended] Starting post-install scripts independently of OS install

Greetings, all.  The webpage mentions that you should be able to do the
post-install procedures (using todo.pl to install all of the packages
and what not), but I cannot figure out how to invoke this manually.  We
are in the process of moving from XP to Windows 7, and so we've already
got a whole lot of applications scripted for todo.pl, and I just need a
way to  get the ball rolling on this.  So my question is this:

How can I start the application installation process manually after
getting the OS up and running?

Any help is appreciated.

Jake

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