I've been using
which is pointed at from http://www.nmock.org/download.html under the name "NMock 2.0 Release Candidate 2"(and "NMock2"). There's also some nice and useful NMock2 documentation available from http://www.nmock.org/.
You have released http://downloads.sourceforge.net/nmock2/NMock2_1.0.zip ("nmock2 Release 1.0", 1.0.3050 according to the Release Notes). A short examination shows that you've added a few things like some IMethodSyntax method overloads and the ICommentSyntax interface.
Please coordinate with the team that runs nmock.org (maybe even take over the site and its content) and reset your version numbering to 2.1, establishing a clear forward strategy.
Thank you for working on NMock2!