It's broken. Here's the best solution I've found so far:
Install CGI-version of PHP and the lynx browser
apt-get install php4-cgi lynx cd /usr/bin ln -s php4 php
Install the PEAR package manager and some modules (Follow the instructions (defaults are okay))
lynx -source
http://go-pear.org | php
No other page links to PhpPear yet.