cvs.php.net and actual PEAR classes

Hi, where can i find the actual pear classes in cvs.php.net ? The folder pear seems to be correct but i cant find the DB folder where the db stuff should reside. Then i searched for DB.php which is normally in pear root folder, i couldnt find this too. Was there a structural change? It would be good if there would be something like a distribution of the PEAR classes without having to dig into the deepest CVS webinterfaces. together with the distribution there could be release numbers of the distro. We had some major problems because of changes in a function of the DB class. Resulting in extreme support queries of users, where its hard to know which version of PEAR classes they have installed. Perhaps everything is there, then i missed the point where all this stuff is... thx for infos