SRL Archive - Help and Support

Ok, im probably just being noob but how do I install it?
The install file located inside the zip doesn't have a file extension, so I cant open it.

http://www.villavu.com/forum/showthread.php?t=17929

:)

Thanks man :)
The SRL4 Release thread links to this one
http://subversion.tigris.org/downloads/subversion-1.4.5.zip

Maybe somebody should change it?