Questions are being asked on the forums re the rules surrounding the GK; which is excellent as it shows interest in the game.  The first answere to everyone is check out the www.fifa.com by searching 'futsal rules.'  These will be the guaranteed latests version.

In brief:

Once  a GK has touched a ball it cannot be played back to him until it has either crossed the half way line or touched an opponent.  For example if a defender is taking a kick in , in his own half the ball can be passed back to the GK. Why? because to gain the ball in the first place the ball must have touched an opponent.  Many teams will delberatly get the ball across the half way line early so that they have the tactical possibility of using the their GK in open play.

If the GK touches the ball whilst infringing on one the above rules an indirect free kick is given against him.  Indirect free kicks are technical fouls that do not count in the '5' foul tooting up rule. 

Where  is the free kick taken?  If inside the are, on the edge of the area adjacent to where the ball was played by the GK.  If outside the area, at the spot the infringment took place.

The GK is always on a 4 second rule in his own half!   In his opponents half he is free of time restrictions.

Question:

Your match referee awards an indirect free kick for this offence, but does not raise his hand to indicate an indirct free kick, the player scores; what decision does the referee make?  The only clue is most referees would get it wrong. 

Answer:  

A goal kick!! the fact that the referee did not raise his hand does not make it an indirect free kick.  The ball has gone out of play, goal kick.

Advice: If this Bobby Lewsham equalising in last second for Gunners Watch, blow your whistle, leave field, and tell them two weeks later goal did not count.