Import/export Pier widget in Pharo 1.1.1

I load Seaside, Pier and addons with the script below. Most things (at least those I've tried) works, but Import/Export widget. It simply ignores all clicks on Import and Export buttons. What's wrong (how is it possible?!) and how can I resolve this issue? BTW: Grease, Seaside, Magritte, Pier tests are green. TIA Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfSeaside30'; load. (Smalltalk at: #ConfigurationOfSeaside30) load. Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfPier2'; load. (Smalltalk at: #ConfigurationOfPier2) load. project := ConfigurationOfPier2 project. (project version: '2.0.7') load. (Smalltalk at: #ConfigurationOfPier2) project latestVersion load: 'Pier-Tests-Model'. (Smalltalk at: #ConfigurationOfSeaside30) project latestVersion load: #('Magritte2 Tests' 'Pier2 Tests'). Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfPierAddOns2'; load. (Smalltalk at: #ConfigurationOfPierAddOns2) project latestVersion load: 'ALL'. PRDistribution register. -- Dennis Schetinin