Nice find! I haven't tried it though I will get round to it at some point. I should imagine that you need to update DBP to probably the latest version(stickied at the top of this board), then open your DBP installation folder, drop the contents in the "plugin" folder that is in the download into your DBP installation - ensuring the folder name matches ie keywords contents from download go into keywords folder of installation etc then simply open the project(s) you wish to use(make sure they are
not still in the zip file) and compile. If that doesn't work then it may be that Evolved's code requires Dark Shader runtime plugin, I am unsure if this is needed but its a TGC product no longer available, in which case your pretty much screwed if you don't already own it - only one way to find out and that is to try it out like I suggest.
Edit - Sorry Kuper, takes me ages to type up a simple post and you posted while I was typing
