Mortennorby's ImageManager launcher stores the photo previews and thumbnails, along with all the current file updates in a data folder contained within the launcher. If you are upgrading from a previous version of his launcher and do not wish to lose any un-uploaded changes or redownload all your image files again, you need to move your existing data folder into the new launcher. 

Here is how you can do that:

(I suggest you rename the old file to imagemanagerOLD before continuing.)

Control click on the old version of the launcher.  Select "show package contents" and a window will open up with a folder named "Contents" showing.  Inside of "contents", open "Resources" and within that open "java".  Within the java folder you will find a "data" folder.  This is where all your file data is stored.

Follow the same instructions on the new version of the launcher until you have two windows, one the old launcher and one the new, opened up to "java".  Delete the "data" folder from the new launcher and copy (drag while holding option) the data folder from the old java folder to the new. If you have added words to the dictionary as well, you will have to copy the english.0 file as well. When its done copying, you can close the package window, double click on the new launcher and viola, all your data will be in the new version.

If you have any questions, feel free to sitemail me on istock (username floop), but keep in mind that I didnt have anything to do with creating the osx launcher, i just figured out how to update it and wrote this readme.

cheers!

-floop