[Zaudas]

Hi. I need fix 4 errors on scriptfile. Can you help me? YES
Code: http://pastebin.com/ThmmQTBC
Errors: C:\Documents and Settings\Administrator\Desktop\Dyzai\Ribotuvas.pwn (50) : warning 235: public function lacks forward declaration (symbol "OnPlayerUpdate")
C:\Documents and Settings\Administrator\Desktop\Dyzai\Ribotuvas.pwn (72) : error 017: undefined symbol "GetVehicleVelocity"
C:\Documents and Settings\Administrator\Desktop\Dyzai\Ribotuvas.pwn (74) : error 017: undefined symbol "IsPlayerInRangeOfPoint"
C:\Documents and Settings\Administrator\Desktop\Dyzai\Ribotuvas.pwn (87) : error 017: undefined symbol "SetVehicleVelocity"
C:\Documents and Settings\Administrator\Desktop\Dyzai\Ribotuvas.pwn (89) : error 017: undefined symbol "SetPlayerVelocity"
Pawn compiler 3.2.3664 Copyright © 1997-2006, ITB CompuPhase


4 Errors.