You're in luck! Try http://www.webscription.net/p-698-liaden-universe-big-bang.aspx -- many of the previous chapbooks, already available from Webscriptions. Which ones, you ask? Okay, go over here http://en.wikipedia.org/wiki/Liaden_universe and there's a chart showing it, but basically, I think it's chapbooks 1-10. Cheers!