From Zerocoin.org:
theres a big difference between research software, and a working release grade client we can stand behind. Our goal is to release this code in a production-quality form that the community can use to stand up a real, functioning currency. We will be providing further updates on this site.
The developers of the real Zerocoin project don't believe that the Zerocoin code is ready for production use... why would anyone trust this coin?
Source:
http://zerocoin.org/q_and_a#can-i-use-it-now