This is WMSECURE: Read this first - http://www.elims.org/wmsecure.htm  

The directories represent releative release dates.

http://www.elims.org/downloads/wmsecure/010713/  has the full package install  

the full package file is wmsecuredist.zip download this first.

You want wmsecuredist.zip to get everthing.  However, there are updates avalible. The later builds of the plug-in are not included in the full package. Try the December 12, 01 release in the 011212 folder for the latest build.