I tried using this plugin on two WordPress MS networks. It blew up both of them, causing PHP errors. One was on a GoDaddy Shared Hosting and the other was on a dedicated Rackspace server. One of them was on a full LAMP stack, the other was CentOS.
Removing the files for this plugin from the server resolved the problem in both cases. I'm using the WPMU Dev Google Analytics plugin as a replacement.