Ok Dale, we can probably help you sort this out. Start at the beginning. Are these the tires you just put on the front?
http://www.tirerack.com/tires/tires.jsp?tireMake=Kumho&tireModel=Ecsta+LX+Platinum&partnum=245WR7ELX&vehicleSearch=false&fromCompare1=yes
What tires are on the rear (exact make model and size)?
As long as the tires are very similar in type, temperature, traction, and wear ratings, even different brands, they should work together pretty well. If there is a big mismatch in tire compound no amount of air pressure or alignment changes will get them to work well together.