Sure, no problem.

1. On Steemvoter, you can set a vote power percentage that you want to use to upvote every new post of a certain person. E.g. if you set it at 100% you will upvote every new post of that person using your full power. If you are new, your voting power is low and you can set it at 'high' (i.e. >50%). Once you have gained more power, you can decrease the percentage in Steemvoter.
2. 12 hours. So you can upvote twice a day. You cannot influence it.
3. Automated. These people follow the bot via Streemian and upvote any post that is upvoted by the minnowsupport account. This was the original setting, however now people delegate Steem Power to the bot and you do not have to set-up Streemian (but you may, if you want to).
4. Correct. This has just been changed this weekend. The channel has never really been intended to auto-resteem posts. It was originally created to be a promotion channel for your posts.

Thanks for stopping by and see you around!
@Finance2Nomad