1. I bought players and now what?

Wait till round is played then view how much points each of your
players earned. You can view pairs for next round and examine
which players performed best in previous round (players page).
You can replace some of your players and wait results of
next round.
You could also follow your position on overall top list and on
round top lists.

2. Which players are in starting five?

Players on office page that are in first row (green bar - field) are
starting five.
Player in second row (red bar - bench) is a reserve.
To send player on the bench click on the link below the player.
Player will go to the bench and player from the bench will replace him
in the starting five.
Players in starting five are sorted by position from left to right.
Guards are first, then forwards and centers at the end.

3. Postponed games?

See rules.