Blogger sort by date not working right

We installed Blogger and tried to get it to sort by date, but it sorts our first blogger by date, then two in between with a month before dates, then reverts back to a more recent blogger. Also, it does not register two of our bloggers by dates. It puts them at the end of the list (I am one of those two).

Do you have any idea why this would be happening? I have switched back to Blogger by Count at this point, but would love to utilize this module if we can get it to work properly.
Thanks!!
Melissa
aka Thinkhappy on http://www.thewomensnest.com