[Plugin: Dynamic Widgets] Trying to make my widgets dynamic on login and register pages

First of all, I am LOVING this plugin. Thank you! It’s is working perfectly on my 3.1 installation, which has four multisite blogs using subdomains.

One thing I hope to be able to do is hide some of my sidebar widgets on the login and register pages:

http://alancordle.com/login/?loggedout=true
http://alancordle.com/login/?action=register

I am not sure how to do this because they are not “official” pages, correct?

Is this something I can do with the “Custom Post Type Archives” setting somehow?

Any help/advice would be appreciated.

One note: I am using the “Theme My Login” plugin too, if that makes a difference.

Thanks.