I’ve put a release candidate for the F7 Installation Guide on my wiki page, along with instructions on how to read it and how to file bugs for problems. Patches to the DocBook XML happily accepted, of course. You don’t need to check out any CVS or do anything other than pull the tarball and read it using yelp, which is installed on the vast majority of Fedora systems.
I’d love it if the Anaconda team took a look at this, although I’m sure they’re very busy stomping last minute bugs. Have at it!