For directions to University of Houston:
http://web.mlsnet.com/t200/stadium/directions/
It's about 20-30 minute drive from The Omni/Bear Creek area. Parking is $5 or $10 depending on the lot - bring cash. Tailgating is permitted in all the parking lots around the stadium.
Extra tickets are available and only $10 - see the tournament tent near field 20 to buy.