No, they don't, sadly. It's a pro-rate market, and you can assume that they don't accept reprints. And they do say that on their guidelines: "
We buy First English Language serial rights plus certain non-exclusive rights explained in our contract."
If you aren't familiar with first rights,
read this article.
The only pro-rate markets that buy reprints I can remember off the top of my head are Flash Fiction Online and the Escape Artists Podcasts--and they do it by paying a flat rate of a hundred bucks. Nobody will buy reprints by the same price they pay for originals.