It might be worth a look to examine the whole index template. I don't know if it's the cause of the problem, or just something related, but the links on the calendars of both web logs are not being created correctly.
The effect is most dramatic at
this link - the calendar is only showing a link for the 15th and there should be links to entries from 7 different days.
At the
RSS Server Link, there should be calendar links for the 2nd, 6th, 15th, 21st, and 22nd, but the calendar is missing the links for the 2nd and 15th.