It should be a case of:
- make sure the album is either public or viewable if the link is supplied, ie not private
- click on the photo you want so it opens in a new page at its full size
- right click on the big image and copy the url (note, this is not the url in the bar at the top of the browser, which is for the page)
- paste the link between img /img tags (dropped the brackets for clarity)
I haven't posted any pics in a while, but that has worked for me in the past. The url you get is huge, so don't panic when you paste half a book between the img tags
