Reply To: What's the best way to wrap an image (+captions) for epub export?

I agree with Bob. But you can anchor the image in the text story in InDesign, then set the Text Wrap to wrap around object, and (in CS5.5 at least), the float code is generated for you, and the text should wrap around the image in the epub. If you want a caption under the image, I suggest grouping the caption and the image, then anchoring the group in the flow (or adding it to the articles panel, if it's between stories).