I have bit the bullet and I am in the process of moving my 12 sites to a multisite install on my own hosted Ubuntu + LAMP server. I won't lie, it's been a few weeks of tip-toeing in the dark. The guidance of this forum and some of your posts on other blogs has been precious. With this latest ambush however, I am now resolved to start asking questions as I cannot find any proper answer anywhere else.
Via mySQL exports, I moved http://www.340mps.com to my server (still in dev) as site ID 2. Everything is smooth (domain mapping, posts, permalinks, etc.) except for the photos. They used to be found at http://www.340mps.com/media folder. I am now under the constraints of the http://www.340mps.com/files folder. The funny thing is if I look for image1.jpg at http://www.340mps.com/files/image1.jpg it is there but it won't show in the library nor in the post.
I would appreciate any suggestion.