Last week I wrote Justin about a bug with his plugin and phpadsnew. No direct solution. No problem for me, cause then I am looking for alternatives. And to be honest: I found a much more suitable plugin for this PlayGround.
So I found info at Sons at Skadi about Extended Live Archive and now I use 0.10beta R18
From the site: Some time ago, Jonas Rabbe released his wonderful Super Archives Plugin. Based on an idea discussed on Binary Bonsai, this plugin implements a dynamic, AJAXified way of digging into the archives of a blog.
And that is what we do now. I am happy. Broken archive problem solved. The only issue left is that I think that after writing a new entry the cache is totally rewritten and/or a very slow index of that archive.