1. With the Joomla Photofolio version you used to be able to use the S5 Tienda Bulk Import plugin to import and price your photo's - what do you use in the Wordpress version to sell photo's
The demo wasn't set up to be able to sell photos, but I was able to find a
tutorial that may be able to help:
http://www.blogwebdesigner.com/sell-photos-wordpress-10069/
2. What do you use to bulk import photo? and does this automatically size it and make the 2 size versions that are necessary for the theme?
Google wasn't able to give me any good information on how to do a bulk image import in WP. The demo content was added manually using the standard WP interface.
3. How does the Photoblog page and Photoblog frontpage menu actually work? Meaning where and how do you configure it so it is easy for a Photographer to upload and do a daily blog?
You may be able to use the
Yet Another Photoblog plugin to handle the photoblogging thing. I haven't tested it though, so it may need some adjustments to integrate fully.
I hope that helps. Let me know if you need any help with any of the plugins I mentioned; I can't fully support 3rd party, but I'll at least try to help make integration easier.