Hey Bruce

While livejournal is written in perl, you may be better served by going to the following livejournal communities with specific questions regarding the application:

LJ Everywhere
LJ Core
LJ Dev
Lj Biz

Livejournal is a really fun application. They have the best threaded commenting system I have ever seen. Their internal support for people running instances of livejournal is very good and accessable through the communities I have listed above.

You can find the CVS for livejournal along with "check out" instructions here.

Regards,
ghettofinger