I just tried both 0.1.5, 0.1.6 and rev. 5935. The first one generates useful graphs, the later versions not. I assume, that two issues are involved:
- I do not, by default, allow my web browser to load JS code from other sites (here: yahooapis.com). As far as I know, the yui library is free software, so it could be installed locally on the trac server.
- My web browser does not have a flash plugin installed to display the charts.swf.
The plugin is really cool, but the flash stuff in newer versions makes it unusable for me.