A teacher asked me to update his WordPress from version 2.0.2.something to the newest.
Everything went pretty ok, till i saw the frontpage afterwords. All the categories, pages, postings and comments are still there, but i get a 404 on the frontpage.
The url is: http://www.cre-aid.nl/wordpress/
And if i use the url http://www.cre-aid.nl/wordpress/index.php i get some comments from an old posting.
I used google to search for solutions, but didnt find people with the same problem, where only the frontpage showed a 404 after upgrading.