Hi Dave,
The installation finished and the PC rebooted straight into Windows as before. There didn't seem to be any further options/steps that would allow me to further configure things.
I booted from the CD again and thought I'd send over some of the earlier steps I didn't originally post in case they're helpful:
That first option, which is hard to read says "Start Windows Setup from CD-ROM"
Then you see this...
Then this...
I have always been selecting "Continue Setup..."