I tried to generate the docs for VelocityTools (which are generated via DVSL) using a recent build of Velocity-1.5-dev, and the files DVSL generated were empty. No error messages were sent to std out and Ant considered the build successful.
Also, DVSL only appears to work with older versions of Dom4j (such as 1.1). If used with Dom4j 1.6.1, then NoClassDefFoundErrors pop up. It might be good to upgrade DVSL, if possible.