Dont give up yet. Have you checked out guineapighome (see the link earlier on)? I take it TX stands for Texas (sorry, I am an Aussie!)? If thats the case, how far away is the Texas Rustlers Guinea Pig Rescue -
Guinea Pig Home Listings - Texas Rustlers Guinea Pig Rescue. Even if it is too far away, it is likely that a piggy train can be organised. The other place to check out is petfinder
http://www.petfinder.com/