links to articles don’t work, posts don’t appear

Greetings from the Alps to all poets,

I downloaded the new WordPress 2.5 and installed it on
https://www.youeatityouwearit.com

Everything works fine, except that when I try to read
the posts, nothing happens. The posted articles just
won’t appear.

I have the summary of all my posts, the sociable plugin
works just fine, the rss is ok but the links to the content
of the posts and all the other links (categories, home,
articles) alway produce the same result when clicked upon:
the original page with the posts summary reappears.

If this is not the place to get help for the new WP 2.5
would you please point me in the right direction?

Thanks.