I use Transmit to ftp the images to the editor. Editor uses Fotostation with batching done with Photoshop. He has noticed that when first viewed in FS the captions don't appear but after batching in PS they do appear but not all of them. I missed three in the last batch of images that went up out of roughly 13 images. I have noticed it myself when they call back with the image numbers and I check them to see if the captions are present and they are missing. I know I have saved them . Both of the ways described in the first post.
I'm getting kind of confused by your statements, but here is my best guess at what is going on and I'm also going to ask for some clarification.
If the captions are truly missing, meaning you don't see them in PM and you don't see them in Photoshop CS on *your* system then the problem is on your end somewhere in your workflow with those specific images. On the other hand, if your editor can take an image and the captions show up in Photoshop on *his* system but don't show up in Fotostation, then the problem likely lies in Fotostation.
Please note that unless you do a Save As... from Photoshop with your original image your EXIF info and your IPTC/XMP info will definitely be lost. Usually the way this happens is that you select the entire image in Photoshop, copy to clipboard, create a new window and paste, then you save. The result is that all metadata is lost.
So to clarify, do you have images on your system that are missing their captions? If so, I'd like to see them. You can upload a sample or two to our server. Contact me privately for upload information.
I'll do my best to get you up and running before your weekend assignment.
-Kirk