Never mind, I solved it. /opt/amle/bin wasn't in my path, so amule was launching an older version of amuleweb. In the terminal window, I changed the path of that particular session to /opt/amule/bin, so the CVS amule now finds the right amuleweb, but if anyone knows a more elegant solution... well, I suppose that would be just installing it in the default location, ie. usr/...
At first glimpse, the new amuleweb looks the same as is it did when I first looked at it two months ago, ie, not an improvement in various ways, so I entered "default" in the "Web template" field of the Remote Controls page of the Preferences notebook (just in case anyone else wants to know) and restored the original skin.
FWIW, a small bug in the install which I pointed out two months ago (
http://forum.amule.org/thread.php?threadid=8819&sid=, see: Missing GIFs), is still there, namely that a number of GIFs are not properly copied to ../amule/webserver/php-default/, and hence the progress bar graph is not correctly displayed with the new skin (this is not a problem with the old default).