1. Select Properties
Right click on your Ethereum Wallet icon and select properties
2. Change Mode
In target box add
--mode mist to the end of the 'target'
3. Start Mist
Start Mist and wait until it is in sync. Then select 'browse' button
4. Change Address
Select the address bar and enter in
Note: You go to a test version by using http://vote.daohub.org/#T159fe90ac850c895e4fd144e705923cfa042d974 instead
5. Add DAPP
Click the plus symbol to add this page as a 'DAPP'
6. Select account
Select the account you want to use for voting
Click on "Yes" or "No", to indicate your vote
8. Enter password
Enter the wallet password. You would have created this when you created the wallet
9. All Done
Congratulations, you voted. Now click "Got It" and continue to select other proposals to vote on, or close your mist browser.
Step by step, coming soon, but in short you need to open mist with the Ethereum Wallet 0.7.4 from the command line with