You can get the v1.0.1 wallet for Windows 7 and above here:

http://www.worldcoinalliance.net/worldcoin-wallets/

You can get the v0.8.6.2 wallets here for Windows XP, Linux, and Mac:

http://www.worldcoinalliance.net/old-wallets/

As far as I'm aware, the github stuff is all here:

https://github.com/worldcoinproject/worldcoin-v0.8


Hope that helps!