Haha okay. I have a tendency to write really buggy code and then slowly debug it over time. It always ends up working, but I NEVER do it right the first time.

In any case, here's your whole code, which should work like magic.

Code:

---

 
function c_ship
{
	player = my;
	my.scale_x = 1.0;
	my.scale_y = my.scale_x;
	my.scale_z = my.scale_x;
	while(1)
	{
		if(you == null)
		{
			c_scan(player.x, temp, vector(360, 60, 1000),ignore_me+ignore_you);
		}
		wait(-0.25);
	}
}

function event_scn();
function got_target();

function f_ship
{
	my.scale_x = 2.0;
	my.scale_y = my.scale_x;
	my.scale_z = my.scale_x;
	my.enable_scan = on;
	my.event = event_scn;
}

var enemy_handle; // a global handle we can use for transferring pointers
function event_scn()
{
	if (event_type == event_scan)	
	{
		enemy_handle = handle(me);
		ent_create("cross.pcx", my.x, got_target);
	}
}

function got_target
{
	my.scale_x = 0.1;
	my.scale_y = my.scale_x;
	my.oriented = on;
	my.facing = off;
	you = ptr_for_handle(enemy_handle); // now YOU is the enemy  
	while(you != null)
	{
		vec_set(temp,player.x);
		vec_sub(temp,my.x);
		vec_to_angle(my.pan,temp); // turn the target toward the player
		vec_set(temp,nullvector);
		temp.x = 20; // change this if you need to - the distance in front of the enemy
		vec_rotate(temp,my.pan);
		vec_add(temp,your.x);
		vec_set(my.x,temp);
		wait(1);
	}
	ent_remove(me);
} 

---