I just used your handy "5 Easy Steps" to upgrade to 3.0.1. with Multi-DB, and activated Multisite per WordPress.org instructions. Everything seems to work except the images on posts and pages, and images in the Media Library. I get the famous "X" for the image. Widgets are not effected. I double checked that blogs.php is deleted and the htaccess file is updated pointing to ms-files.php. Images are in the blogs.dir. Same problem on two different multisites just upgraded. What step did I miss?