Chris, update your Autogal to 3.5...make sure your server has ImageMagick installed (if not one of the tech goons can do it for you). 
 
I'm pretty sure it's a free upgrade if you have 3.1...but they've improved the thumbnail cropping bit where you can do brightness, contrast, sharpen, etc, and has a few other filters. 
 
I need to do this myself, but I've been lazy and I also dread the thought of screwing up my tpg database, lol.  I'm going to do this on my small tgp first as a sample...then do it on the larger once I have a good feel for updating. 
		
	
		
		
		
		
			
		
		
		
		
	
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