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Here is the solution to what took me 3 months to figure out, absolutely no one in this discussion board had the answer to no even the most expert.
here is the site
http://www.mackb.com/Uwe/Forum.aspx/mac/28074/USB-tethering-with-iPhone
iPhone 4 16 GIG IPHONE 3GS 16 GIG, iMac 27 inch i7 quad core 12 gigs of ram, Mac OS X (10.6.6)