if you bet the moneyline, thus the 1X2 like in ice hockey for example, you have the option of the home team, draw and away team in regulation.
if you bet on the spread, handicap, AH, it works like in the nfl and nba.
0, pk or DNB you win your wager if your teams wins. if a draw occurs its a push
+0.5 you win your wager if your team wins or draws.
+1 you win your wager if your team wins, draws. push if your team loses by 1.
+0.25 (or +0, 0.5) your bet is divided in 2 equal bets: one on the 0 (PK, DNB = Draw No Bet, where there's a push when a draw occurs), the other on the +0.5.