[GTLS]

Add a Pickup or a CP at Enter and Exit points. in OnPlayerPickupPickup or OnPlayerEnterCheckpoint, put a condition,

PHP код:

 if(PlayerInfo[playerid][pVIP] >= 1)
{
     SetPlayerPos(playerid, X,Y,Z);
}
else
{ 
   SendClientMessage(playerid, -1, "You are not VIP.");
} 


Above Code is an Example that you can use. replace all variables with your own according to your script.

EDIT: after seeing your code i think its wrong. Put CP or Pickup under OnGameModeInit(), then on OnPlayerPickupPickup or OnPlayerEnterCheckpoint, using a Variable check if player is in VIP entrance or at some other place, like

PHP код:

if(pickupid == VIP_Enter) // for Pickup
{
     if(PlayerInfo[playerid][pVIP] >= 1)
{
     SetPlayerPos(playerid, X,Y,Z);
}
else
{ 
   SendClientMessage(playerid, -1, "You are not VIP.");
}
}