multipool does not have an option to auto-convert to BTC. To set up automatic payouts to your wallet addresses, go here: https://www.multipool.us/accountdetails.php

I know I've seen some people mention that they set up multipool to auto send the coins they mine to a cryptsy auto-exchange address. However, this might not be advisable because coins could get lost.

I prefer to send the coins to the wallet on my desktop, then send them to an exchange.

EDIT - You can see your unconfirmed/confirmed coin balances in the top left corner of the page. Also, I believe the profitability is measured against BTC (since they provide */BTC calculations on your balance page).