I've just experienced the same problem Rhys. I can't find the 'mountain' or any other icon to share a single photo. The only way I can find to share images is to send a 'photostream' to facebook, twitter, etc. and I sure as heck don't want to start accounts with any on those
I just got my first photos on this forum. Photobucket was charging, Flickr don't seem to do BB code any more, but this site was really easy to use (and free...) imgbb.com. Very easy to get the bb code, and I just copied in the <img>...</img> section and it worked first time. If only the same could be said for my Saab...