You can use this page to watch for some available slot.
First Option to join:
Open the game -> Click in "Join Game" -> Check the option "LAN" -> Click in Button "Direct IP" -> Type our Server IP there: 138.201.181.247
Second Option:
Open the game console (pressing the first key before the key with number 1 in your keyboard);
Type in console: OPEN 138.201.181.247
Third Option:
Install server patch patch backed up by swat4stats.com

then join available servers just like before the gamespy shutdown
IP address updated. // Serge