In regards to the vs. seeker in Diamond and Pearl, is there a way to get the trainers you re-challenge to level up the pokemon they use?  I know that some trainers, when rechallenged, have higher level pokemon.  Serebii.net has a great guide outlining which trainers will have level increases when you rechallenge them, but the problem is that several of the trainers I'm vs. seeker-ing won't increase their levels when I beat them.  I am not quite sure what to do here, any advice would be greatly appreciated.
				
			 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		
 
 
		








 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		