not finding directory main page

Hi, I have installed Wordpress Directory plugin on my site and everything seemed to go as per the install instructions except when I did a test listing whose address is: I get 404 error. I resaved permalinks as similar posts suggested but that did not help. Under appearance, I did not have options for background, color, editor either

I also tried setting up a separate blog just for this plugin at but that did not work either although test listing show like this:

buddypress 1.2.8
wordpress 3.1

Thanks for your help!