The link in Harpreet's post resolves to the list of downloads that I was referring to.
An additional download that I didn't comment on is this:
Version 8.0 Adobe FrameMaker 8 with Windows XP SP3 fix 652.2MB 7/15/2009
That seems to be the entire Frame installation, like you'd find on a CD/DVD.
However, it is standalone, and I wanted to keep everything installed as part of the TCS suite, for whatever advantages that brings.
If your installation media is lost, or if you only have version 8.0.0 of Frame, the above is your solution.
If you're a volume licensing customer, you can also retrieve your original download files through the licensing website.