Before WP3.0 came out, I had several separate installs of WP on different subdirectories. A number of them have NextGEN installed (with a large number of galleries).
I'm planning to merge those separate installs using the multisite feature. I would also like to move all the galleries from "wp-content/gallery" to "wp-content/blogs.dir/#/gallery".
Is there an easy way to do this or do I have to manually reupload everything all over again?