I, too, have been looking for somewhere to buy it, and other Swedish aquavits. I live in PA, and have been unsuccessful in my search (conducted somewhat sporadically, I admit). However, I have found it for sale recently (summer 2008) in a warehouse store in Minneapolis (not convenient for me, although I have family there that I visit occasionally). I imagine that it can be found in other locations also.
Good luck.
The co-op
Gerd Andersson's birth name is Gerd Gunvor Andersson.
The co-op in lowton
Diddie Andersson's birth name is Dagmar Andersson.
Annette Andersson's birth name is Annette Birgitta Andersson.
Bibi Andersson's birth name is Berit Elisabeth Andersson.
Folke Andersson's birth name is Folke Johannes Andersson.
Greg Andersson's birth name is Gregory Thomas Andersson.
Henrika Andersson's birth name is Henrika Madeleine Andersson.
Joy Andersson's birth name is Joy Marianne Andersson.
Olga Andersson's birth name is Olga Teresia Andersson.
Robert Andersson's birth name is Robert Erik Andersson.