You can't just replace 2 parameters by 1 thing... Also GetMousePos doesn't have a return value...
[scar]var
x, y: Integer;
begin
MoveMouseSmooth(735 + random(217), 408 + random(217));
Wait(100+random(200));
GetMousePos(x, y);
HoldMouse(x, y, true);
Wait(20+random(50));
ReleaseMouse(x, y, true);
end.[/scar]