Just in case that you've missed the great news, Karl Shifflett released the new version of Mole, called Mole 2010.
This version has many new features and it makes the previous free versions to be looked half-baked prototype, as Karl mentioned.
Note that this version is a commercial version and it will cost $$.
If you're asking me, It worth every penny, but if you care about your money you can still use the old version with Visual Studio 2010.
You can download a free version from here, also the source code of it from here.