The Rail Europe - www.oebb.at/en/ is somewhat usable, with handy pocket dictionary in hand.

Question. Do you go through this for each ticket? I don't see where you can ask for more than one ticket.

Not sure why this several month old thread got resurrected, but I'm the original poster so now I can answer my own question for anyone else needing the info. I just showed up at Westbanhof a couple days before I wanted to go. At the info booth I was quoted a price of 34€ euro one way, which is what I had found online. When I got to the ticket window I was given the "special" price of 19€ without even asking for it. There are several trains each day but some of them take much longer than the 3 hours which is the quickest. There are at least 3 or 4 trains like that.