The January/February 2010 edition of the Skeptical Inquirer has an article on Edward Leedskalnin that goes into quite a bit more detail than the various articles linked to in our thread of a few months ago.
I think you are going to have to search the bookstores. I have seen them on the shelves at Chapters here in Canada. I have had a subscription to the magazine since the '80s.
Thanks. I did manage to find the current issue online, but only certain articles are made available for free viewing. I'll have to pick up a copy of the print version. Thanks for the info!