The autovote is a tool you can use to vote automatically your favorite authors, Delegation is completely separate and done through steemconnect...

Delegation URL: https://steemconnect.com/sign/delegateVestingShares?delegator=YOURNAMEHERE&delegatee=steemdunk&vesting_shares=100.000%20SP

Replace "YOURNAMEHERE" with your account name and replace "100.000" with the amount you'd like to delegate. Make sure to keep the "%20SP" as it represents a space and the Steem Power symbol. As soon as the operation is broadcasted, you will be automatically registered as a sponsor and will start receiving payouts during the next payout cycle.

https://steemit.com/steemdunk/@steemdunk/first-payment-cycle-completed-for-delegators