I now have an aggregator page that shows summaries for the last 50 posts from the roll sorted from most recent back. That is the page that now comes up in the index at the aggregator. Since I think there is value in the old system–one or five posts per blog selected by the user–I have included a link to the old aggregator here.
I am working on a new header and footer to replace the Energion.com stuff. I have the site hosted on that same server, but I will eventually finish making it look like its own site all around.