It's set in Campbeltown, or at least in a fictional version of the town, called Appleton. There was a launch for the UK edition - it was published in the US in 2006 - at the Library on Wednesday. I'm looking forward to reading the book. Here's my blog post:
http://beautifulrailwaybridgeofthesilverytay.wordpress.com/2012/07/06/the-silver-bough-whisky-town-to-apple-town/