AFAIK I don't think that guide really has what ToXic is looking for. You will need to download
vLite as well as
WAIK.
It will likely take some trial and error on what you can remove or not. There isn't a whole lot you can get rid of without screwing up the OS. You can get rid of the larger stuff like natural language, speech support, all the language packs. Those three are the largest saver of space.
Even so the Windows directory is still going to be a good 12-14GB after all the updates are done. You can also save quite a bit of space by disabling hibernation, and moving the page file off the drive (although I am personally against this).