Cut each fillet into 3 equal portions. In one baking pan combine cornmeal, flour, thyme, garlic powder & red pepper. In a second baking pan combine egg & milk. Coat fish with meal mixture; shake off excess. Dip into egg/milk mixture. Then coat again with meal mixture. In skillet, melt 1 Tbls. Margarine; saute fish over med heat for 2-3 minutes. Turn & cook an additional 2-3 minutes. Drain on paper towels. Repeat with remaining fish adding additional margarine when necessary.