Moondog's "a bit tricky" is quite an understatement.

After many tries, I managed to partially verify mine. But then had to call in to find out that I had two ticket numbers because they only can put 4 segments on one ticket.

Priceline never told me this, they just gave me the second ticket number. Had I not resolved this issue I might have shown up at the airport with the wrong ticket number.

As an aside, somebody mentioned that emailing the NYC ticket office worked fine for them.