Make Images Exportable for External Editing
I can't find a way to edit an image from Captivate in Illustrator or Photoshop. I am being handed a Captivate file and not always all of the source files used to create it. It'd be really helpful to have a right click and 'Edit in Photoshop' option for when the graphic file is not available. This function exists in other Adobe products, please add it to the new Captivate.

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Claire Iversen commented
Not at all what you are asking, but here is a workaround for now- PUBLISH your project. this will give you two folders- a zipped one and an open one. This will give you ALL the items in the project. in a folder titled "dr" you will find the images used in the project. THEN you can open with photoshop :)
You will then have to go back to captivate and put in your new image, but you at least have the image source file available.