Let's have a look into the manual:

First turn the enemy against the player:
http://www.conitec.net/beta/avec_to_angle.htm
Code:
Example:

function turn_towards_target()
{
  // get the direction from the entity MY to the entity YOU
  vec_set(temp,your.x); 
  vec_sub(temp,my.x);
  vec_to_angle(my.pan,temp); // now MY looks at YOU
}



After that move it:
http://www.conitec.net/beta/ac_move.htm
c_move(ENTITY* entity,VECTOR* reldist,VECTOR* absdist,var mode)
For instance like this:
c_move(me, VECTOR(1,0,0),nullvector, GLIDE);

And put this into an action with a while loop.
Maybe, like it is described in the online manual here:

http://www.conitec.net/litec/work18.htm

The general links are on this, means this forum, site that you are yet reading at the left upper side in the column called Links! wink