Hmmm, I feel a bit stupid.

If you recently downloaded version 1.1 and have found you can't actually buy the program from within the program itself, could you please download version 1.1.1 that's uploaded now. Due to an oversight on my part, I forgot to put one critical line of code in the program. One line doesn't sound like much (especially as BeerAlchemy has over 16,000 lines) but this one line was pretty important.