Shortly after the site upgrade to PHP-Nuke 5.1, version 5.2 was released. There's not much new with 5.2, mostly bug fixes and (again) administration changes. I didn't like the included AvantGo module, so I have kept my own home-grown version. (which is next on the list of improvements)

The official 5.2 announcement can be found here, and the source is also available for download.

On a somewhat related note, Radio Technomagik has been upgraded to icecast-1.3.11 and ices-0.2.2, which no longer crashes, and is usually reliable enough to listen from most broadband connections. I wouldn't try from a modem connection, though -- the stream is 128k+

Finally, although speed doesn't seem to be much of a problem, I'm looking into using APC to cache and accelerate the PHP code.