How to install working GrowlVoice from scratch on Mac OS 10.9.5 (Mavericks)?

As of April 2014 , Google Voice apparently broke the GrowlVoice 2.0.3 interface. Since then various fixes/patches/etc have arisen. I need a procedure to reliably (re)install a working variant on Mac OS 10.9.5--I don't (yet) want to upgrade to Yosemite. I have to reinstall every time I'm forced to reboot my laptop, and on the last reboot, all my past tricks (that I can remember at least, derived from these sources ) appear to be failing, with : "Sign in error: The operation couldn't be completed. (com.google.HTTPStatus error 404.)" I need a "from scratch," Mac OS 10.9.5 procedure to get Growl Voice working: 1. Remove all existing, conflicting files/artifacts. 2. Install http://www.growlvoice.com/trials/growlvoice-2.0.3.zip or some other canonical source of the App. 3. Fix/patch/whatever #2. 4. Preferably: make the above work through reboots. Since I'm having trouble on this latest (re)install, I need a full, autonomous procedure (to de-install *all pertinent and potentially-conflicting files*, install GrowlVoice, install patches, etc); most if not all the procedures here appear to be partials.