Got Apache 2.0.54 running on my iBook with mod_perl 2.0.1 and Perl 5.8.1. At last! Oddmuse revision 1.607 will work in that setup and I documented it on Oddmuse:Using mod_perl.
The code I checked in today was rather large. I am determined to get mod_perl right, finally. And I added a feature whereby users can download CSS files from a server and install them locally. Since I cannot determine (and write) to a document directory on the web server, I store it on a page and link to it from the HTML generated. This will of course invoke the script twice for every request, even if the second call just returns a 304 Not Modified. I used to inline such pages because I felt that saving on number of processes and CPU usage was more important in a shared hosting evironment. These days I no longer agree – specially in a mod_perl environment, this is no longer important. Bandwidth turns out to be the limiting factor (and the cost of bandwidth).
Also note that a lot of tests are broken at the moment.
#Oddmuse