You've figured it out by now, but using the "introduceyourself" tag gets a ton of robot responses. It's sad really and one thing that's wrong with this place. That's the reason I take the time to look through the introduceyourself new section manually to look for promising new users such as yourself. Then I give them genuine and specific replies. Shocking, right?!

The payout is not exactly that way. You used to be able to change whether it was all Steem Power or 50/50. Since the prices are so low, they changed it to always 50/50. All that means is that your payout is split into half STEEM and half Steem Power. You don't get that full amount that you see though. Say the amount was 1 dollar even after the 7 day window to profit closes. That means you get 50 cents, and the people replying to your post get the other 50 cents. At least that's how I understand it.

If you plan to stick around, move all your STEEM into SP. The more SP you have, the more bandwidth you have. You need bandwidth to post and reply to other people's posts. If you have any other questions, feel free to ask. I'll gladly help more!

P.S. Please stop using the introduceyourself post. It's considered abuse (lots of people abuse it for profit). Eventually, people who keep using it will be reported to steemcleaners.org's abuse report website.