For our new flex viewer (2.4) I have 6 sets of aerial photos, 3 of which have coordinate systems defined and 3 which are undefined (according to "properties->source" in the MXD). In the MXD all 6 sets of aerial photos show up when turned on (i assume because the catalog's .dbf file provide the coordinates for the images geographical location).
When I create a service of the map those 3 image catalogs that have the "undefined" coordinate systems don't show up in the flex viewer. I have no idea why they wouldn't be projected on the fly or put in the right location as per the .dbf's coordinates.
Any help on this topic would be greatly appreciated.