Here is what I ended up doing instead, partially because BZR on windows is for some reason horrifically slow for me.
Download vmplayer (free version at the bottom of the page)
http://www.vmware.com/products/player Download Kubuntu. Please consider using a torrent to save them bandwidth costs.
http://www.kubuntu.org/getkubuntuSet up vmplayer with Kubuntu as the boost ISO and let Kubuntu install (this takes like 10 minutes). Don't skimp on RAM for it since compiling with too little RAM will give you internal compiler errors, I gave it 2 GB and it was fine.
After Kubuntu is installed, run apt-get update and then apt-get upgrade so it gets all the recent updates.
Download this script and edit line 42 from "REVISION=$STABLE" to "REVISION=$TESTING"
http://bazaar.launchpad.net/~kicad-product-committers/kicad/product/view/head:/scripts/kicad-install.shRun the script and wait a good hour or so for it to fully compile and set itself up.
When this is all done, you can use kcad normally inside the VM. To start Kcad click on the icon on the bottom left, search for Kcad, and start it from there.
You can also run Kcad in Unity mode so it would look like a normal application in windows. This will give you a look like this:
Keep in mind that the non stable branch is, well, not stable! There are bugs, and it throws a fit when you try to open a new window with Unity. But other than that, it works!
Edit: OpenGL mode does not work for now using this setup, use Cario which is far slower but looks nicer while also not crashing every time you want to work with the new auto router.
Here is what quick few clicks did for me while getting a feel for kicad: