Weed is now listed on Barnes & Noble — see here.
No sign of Shorts on that site though. Is it possible that Messrs B&N took exception to the less-than-pristine underpants on the cover and are protecting the sensibilities of the book-buying public? Regardless, Shorts, like Weed remains available through the seemingly endless number of outlets associated with Smashwords.
Plans for paperback editions are again stalled. I am tentatively confident that the paper edition will be out some time this millennium or the next one.