Damn! I forgot to ask about ISU. You can read all about them on their alumni site:
http://www.sigmanuisu.org/re-establi...ablishment.htm
They have a great alumni group.
I asked about Texas and he wasn't really sure. He said technically they still have their charter, but has no idea how they are operating as they have no house and no members (last I heard). I'll bug him for an update. He did say there were hopes to get a BIG push with their alumni this grand chapter and see if they can get everyone on the same page down there.