I just updated to the new version without to much trouble and I have a very non-standard setup.
Just run the new configurator using your existing config file. Some items may be a little out of place
and you can just drag them where they should be. It's a really nice tool. Then upload the new config
file and the wdlv6_01.swf file and change the index file to point to the new .swf file.
I don't use the AJAX/PHP templates but it looks like all you would have to change in wxlive.php
is these two lines.
var pathToConfig = "
http://saratoga-weather.org/wdlconfig5.01.xml";
var swfFileName = "wdlv5_03.swf";
to the correct values and it should work.
Mike