Aha! You most probably moved your files from one location to another. I had something similar happen recently when I installed a new hard drive and restore all of my files to it. The other day I moved all of my files and incurred something similar. Anyway I had to reconnect all the broken links manually; this is the only way.
Since I learned the hard way with most pages I can not be 100% sure, but I believe that if you save your open file in BV to it's new location... Save As...select new location...save! I believe this also creates a copy of the image in this new location. Again, you have to play with it I am not sure. All else fails, if your pics in the old location are in a seperate folder you can copy it to the new location.
Let me and the rest of us know if this worked.
As for the uploading part from j:
did you initially open the file, you published, from j: or from its original location c