Zzarchov Kowolski's Thulian Echoes adventure is now available in PDF form! You can get it from RPGNow or the LotFP Webstore.
(If you're wanting just Thulian Echoes right now, I recommend getting it from RPGNow to avoid the minimum order fee from the LotFP store.)
(The print version is exclusive to those who bought it as part of the Ref book campaign last year.)