I saw this thread which is exactly what I've done as well, Downgraded PHP to version 5.2 on Ubuntu 10.4
When running as root I just get the download, no install message, any thoughts?
pear install Mail_Mime-1.8.0.tgz
downloading Mail_Mime-1.8.0.tgz ...
Starting to download Mail_Mime-1.8.0.tgz (31,292 bytes)
.........done: 31,292 bytes
I've looked in the phpinfo() and see nothing except the pear path
include_path .:/usr/share/php:/usr/share/pear .:/usr/share/php:/usr/share/pear
running pear list I get this
pear list
Installed packages, channel pear.php.net:
=========================================
Package Version State
Archive_Tar 1.3.3 stable
Console_Getopt 1.2.3 stable
PEAR 1.9.0 stable
Structures_Graph 1.0.2 stable
XML_Util 1.2.1 stable