I've used your link to create a dropbox account. What do you get for doing that by the way?
I've never considered using firefox portable I just really don't like firefox so the thought never even crossed my mind but you're right it would be useful for troubleshooting.
I'll pm you my dropbox email so you can add me to the shared folder please, that would be really usefull.
I've managed to get everything working perfectly on the laptop from work, haven't bothered playing around with the VM yet though I will at some point.
I'm especially liking the "other titles by this author" and "download to calibre" links. More karma is definitely on the way for this
Edit: Bah still won't let me give you any Karma... /me goes to look for information on why...