**URGENT** - Updated Domain Mapping Plugin

Updated Domain Mapping just a little while ago, and it fucked up all my mapped domains! What happened? In this network I have:

http://letstalknation.com (MAIN SITE)
http://letstalknevada.com
http://letstalkutah.com
http://letstalkcalifornia.com
http://letstalkidaho.com

Each Site has and uses a separate domain name. When I updated the plugin, all domains now redirect to the main site (letstalknation.com) instead of staying on the right site. What changed in this update?? Can you help me roll back to the previous version of this plugin so that it's not screwed up for users?

Thanks - Access is already enabled, need help with this ASAP.