Hi all, So now I updated all configurations needed to load Pier3. I must admit I only tested loading Pier3AddOns, but this should work fine: Start with a base Pharo 2.0 (another version should be fine too, not sure about Pharo 3.0, but confident Pharo 1.x works as well). Get the configuration of Pier3 from smalltalkhub (http://smalltalkhub.com/mc/Pier/Pier3/main) and run: ConfigurationOfPier3 project load: #stable " Load pier3 " ZnZincServerAdaptor startOn: 8080 " Start the Seaside server on the default port " PRPierFrame registerAsApplication: 'pier' kernel: (PRKernel instanceNamed: 'pier'). "Register pier as application" And you have Pier3 running in Pharo 2.0. Cheers, Diego