Selenium test failure 5.2 with VCS/PostgreSQL

hudson job http://qa.nuxeo.org/hudson/job/IT-nuxeo-5.2-tests-postgres/ failures:

• the forum topic list is displayed in the reverse order which make selenium test fails

suite-2:

• deleteCommentByAuthorOnTopicWithoutModeration
• deleteCommentByAdministratorOnTopicWithoutModeration

• The tag service tests fail on PostgreSQL

suite-webengine:

• addTagsTestWebsite
• removeTagsTestWebsite