I just confirmed that you can order back issues of Interzone #231 from this URL:
Cost (at today's exchange rate) is $8.20, shipped. Paypal accepted.
In addition to "The Shoe Factory", the issue also includes 3 stories from Jason Sanford, as well as Aliette de Bodard's "The Shipmaker", which just made the short list for Best Short Story from the BSFA (British Science Fiction Association) as well as the US's Year's Best Science Fiction anthology. More info on Jason Sanford and Aliette de Bodard can be found at:
http://www.jasonsanford.com/ (FYI: Jason's site is chock full of awesome writerly goodness, and should be read by *everyone* who creates (or wants to create) good stories, genre-based or not. It's kinda like a vast Hometown Buffet of literary criticism, tips on craft, and timely announcements about what's happening in the field - only instead of crappy pasta and wilted salad, everything that's laid out is fillet mignon and lobster tail. Oh, and the buffet is free. Seriously... go lose an hour or two poking around... now.)
Anyway - go get your copy of Interzone #213 while you can!