(If you attempted to install version 2.0.6. you'll have got an already installed message because I forgot to update the version number )
You can find the latest versions NEST Home 2.0.10 on these links:
NEST Home: https://www.dropbox.com/s/b5f3551atgijqt5/NEST%20Home.zip?dl=0
NEST Home 2: https://www.dropbox.com/s/erho03w3dce92n3/NEST%20Home%202.zip?dl=0
NEST Home 3:https://www.dropbox.com/s/hz9t2emjeqi9pdw/NEST%20Home%203.zip?dl=0
NEST Home Manual: https://www.dropbox.com/s/fo3l19m1vq8otfa/NEST%20Home%20Manual.pdf?dl=0
If you've already got NEST Home running successfully then you probably don't need to install this version and you can safely wait for the next major release - coming soon.
As usual, download and install - don't delete any devices or the preferences file and NEST Home will automatically sync itself to match your set up(s) on the first refresh.
Regards
Mike