newbie question

Hi,
i’m a newbie to radiant and to your stack system.I installed the radiant.No problems with the install.the only odd thing hapenning is:there’s 3 articles.blog post 1,2,3.I can see those articles in the frontend,but when i log in the backend,and click in the “articles” tab,i get a 404 inside the admin saying those “articles” are not in there!!!!maybe this is about radiant,not about bitnami…but,where are those articles!!!!:D

Articles (Archive)

pageNot Found

The requested URL /admin/pages/4/children was not found on this server.