After looking at this issue - I do not think it is not possible to fix within mod_rewrite.

Direct links to images in D6 are like this

http://dolphin6.deeemm.com/media/images/sharingImages/1.jpg

But in D7 they are like this

http://dolphin7.deeemm.com/m/photos/get_image/original/60e8b216aad9d33ac6889f2872918ab4.jpg

Images are now stored here in D7

/modules/boonex/photos/data/files

* There is no rewrite rule in above upgrade instructions to rewrite the image URL.
* Additionally
see more * All images were moved from /media/images/ to /modules/boonex/photos/data/files
* All images were renamed as part of this move
* Therefore - it is not even possible to write a rule to take care of this issue.

I don't think I need say any more.

/DM