Hi Bransom,
We don’t support WPMU at all actually. The downloaded one. For WordPress 3.0 multisite we should work but provide limited support. But seems we don’t work as intended.
I put a bit of info here:
https://www.ads-software.com/support/topic/encryption-type-none-can-i-change-that?replies=9
Basically over next few weeks I will try to do the necessary changes so the plugin works exactly as you request – as that is how it should work. Just needs a lot of change to make it properly work (I’ve now properly looked at multisite code and our code ands it not as compatible as I thought). Multisite is a very different beast and more complex than first thought.
Ill update here when the work is done with some beta version you can try if willing. But as said if will take few weeks to finish.
Regards,
Jason