Using Lerp For Camera Movement Smoothing. Help!?

Hello Everyone of the Angelscript Forum,

I am back with yet another weird situation. I am sure you guys know the answer to this one. I am baffled right now. ?

So, I am trying to get a camera in a 2D game follow the player with smooth movement. I got the camera following with smooth movement part working, but the problem I have now is that the player character is at the top left corner of the screen. I cannot seem to get the camera to center the player to the screen. I am not sure what to do. The camera smoothing part is working! How do I get the camera to be over the player character so he is near the center of the screen?

Here is my code:

float time = UnitsPerSecond(10.0f);
float lerp = 0.1f;

 vector2 position = GetCameraPos(); <- I think this is a problem because to center the camera on player, I would need this to say "vector2 position = PlayerPos - ScreenSize / 2". But if I use that code with PlayerPos - ScreenSize/2 the camera becomes jittery, but I dont understand why that happens?
 
 position.x = position.x + (player.x - position.x) * lerp * time;
 position.y = position.y + (player.y - position.y) * lerp * time;
 print(position.x);
 SetCameraPos(position);

Anyone have an idea on what im doing wrong here?

Thank you,

DrMeowEyes