Portals/CMS:
Drupal (4.7.4) (website)
Geeklog (1.4.0sr5-1) (website)
Joomla! (1.0.11) (website)
Mambo Open Source (4.6.1) (website)
PHP-Nuke (7.9) (website)
phpWCMS (1.1-RC4 Rev. A) (website)
phpWebSite (0.10.2) (website)
Post-Nuke (0.762) (visit site)
Siteframe (3.2.2) (website)
Typo3 (4.0.2) (website)
Xoops (2.0.15) (website)

Customer Support:
Crafty Syntax Live Help (2.12.9) (website)
Help Center Live (2.1.2) (website)
osTicket (1.3.1) (website)
PerlDesk (2.25) (Commercial, needs license -- currently disabled) (website)
PHP Support Tickets (1.9) (website)
Support Logic Helpdesk (1.2) (website)
Support Services Manager (1.0b) (website)

Discussion Boards:
Invision Board (Disabled) (website)
phpBB2 (2.0.21) (website)
SMF (1.0.8) (website)
YaBBSE (Disabled) (website)

E-Commerce:
CubeCart (3.0.13) (website)
OS Commerce (2.2 MS2 (051113)) (website)
Zen Cart (1.3.5) (website)

FAQ:
FAQMasterFlex (1.1) (website)

Hosting Billing:
AccountLab Plus (2.7 r4) (Commercial, needs license) (website)
phpCOIN (1.2.4) (website)

Image Galleries:
4images Gallery (1.7.4) (website)
Coppermine Photo Gallery (1.4.9) (website)
Gallery (2.1.2) (website)

Mailing List:
PHPlist (2.10.3) (website)

Polls and Surveys:
Advanced Poll (2.03) (website)
phpESP (1.7.5) (website)
PHPSurveyor (1.0) (website)

Project Management:
PHProjekt (5.1) (website)
dotProject (2.0.4) (website)

Site Builders:
Soholaunch Pro Edition (4.9 r14) (Commercial, needs license) (website)
Templates Express (website)

Wiki:
PhpWiki (1.2.10) (website)
TikiWiki (1.9.4) (website)
 

Other Scripts:
Dew-NewPHPLinks (2.0.1.0b SEF w/Thumbshots) (website)
Moodle (1.6.3) (website)
Noah’s Classifieds (1.3) (website)
Open-Realty (2.3.4) (website)
phpAdsNew (2.0.8-pr1) (website)
PHPauction (2.1) (website)
phpFormGenerator (2.09c) (website)
phpLinks (Disabled) (website)
WebCalendar (1.0.4) (website)