HACKED: Network Theme TimThumb vulnerability

Hi,

My network theme site has been a hacked.

This theme uses code publicly known to be vulnerable. If there was ever a smoking gun, timthumb is it. I've come to the conclusion that this is the most likely source of my trouble. Can I use this plugin? (Can I not use it!)

http://wordpress.org/extend/plugins/timthumb-vulnerability-scanner/

Please upgrade the theme to replace timthumb ASAP.

Larry