PEAR with lots of trouble

Hi there, I am trying to install PEAR. Horde - a webmailer - requires a certain log modul which seams not to come with the recent php installation. I installed a second php version as standalone php version to be able to install the pear class like stated on the php.net site. However I do still get this message: a.. Log - No a.. Make sure you're using a recent version of PEAR which includes the Log class Can anybody give me a hint on how to install this PEAR successfully on my php version (I guess now it is installed inside the other php standalone version) Thanx for any help Andy