site deployment

Hello,
So here is my problem, I created a multi-site installation of Drupal using a single source tree with 50+ sub-sites using symlinks for each. The problem I have is if I try to create a page alias on a sub-site that is the same as another symlink sub-site directory Drupal will not display the page. Instead Drupal will validate the URL as the first sub-site's home page.
Here is an example

1) I have a default site at:
www.example.com

2) I have two sub-sites
www.example.com/math
www.example.com/arts

If on the math sub-site I attempt to create a page using pathauto like so:

Hi guys, just wanted to let you know of a new (maybe great) service that allows experienced Drupal developers start up their Drupal projects quicker.

The web site's address is www.drupalmashup.interestsphere.com.

Purpose of the site is to come to the aid of experienced Drupal developers who have discovered that they rely on much the same collection of modules for a particular type of site. Once you've mashed up your collection you can view the generated drush commands and/or download the (UNIX shell) script.

Hallo allerseits!

Ich habe meine neueste Site als Testversion auf den Server getan. Es wäre mir eine große Hilfe wenn ihr alle einmal durchklicken würdet und mir etwaigen Fehler und Probleme berichtet. Die Site läuft jetzt für 1 bis 2 Tagen unter http://kgszugweg.de/48hours/zugweg - danach werde ich sie direkt auf http://kgszugweg.de freigeben.