Since it was downloaded with Nutch 0.9 I am sure if it is not a latest version. Plugin itself is 1.0.2, I am not sure if new version is out since 2.1 carrot is out.
We will be upgrading the Nutch plugin soon -- it's on our list: http://issues.carrot2.org/browse/CARROT-105 Sorry for delays. Dawid
