LMAO  Nice one, fair enough.  
The lighting is actually turned back on with the downloadable config, the old one turned off too many things.  
Fixed the lighting 
Fixed the shadows 
Lowered the draw distance 
alot of tweaking is required for gta IV to even get the smallest increase in performance.   
BTW do you know of a config for GTA IV that improves preformance besides this one?