Thumbnails Problem

I have problems with the thumbnail of the posts… the url was wrong…

The correct url of the original post is subsite.main.com/files/year/month/thefile.jpg

And the plugin loads the url like main.com/wp-content/uploads/year/month/thefile.jpg

So… the true image path is: main.com/wp-content/blogs.dir/theblogid/files/year/month/thefile.jpg

I’ve tried use the Photon Jetpack plugin for a CDN to my images but same problem…

http://wordpress.org/extend/plugins/network-shared-posts/