A new version of Monticello was added to project The Inbox:
http://source.squeak.org/inbox/Monticello-hmm.388.mcz

==================== Summary ====================

Name: Monticello-hmm.388
Author: hmm
Time: 16 April 2010, 10:12:32.153 pm
UUID: 0a9b3503-272b-42d7-8a27-e124bae7ca3a
Ancestors: Monticello-bp.387

MCSnapshotBrowser>>allClassNames would incorrectly list the classes of script definitions if a package contains preamble or postscript.

=============== Diff against Monticello-bp.387 ===============

Item was changed:
  ----- Method: MCSnapshotBrowser>>allClassNames (in category 'accessing') -----
  allClassNames
  	^ (items 
+ 		select: [:ea | (ea isOrganizationDefinition | ea isScriptDefinition) not] 
- 		select: [:ea | ea isOrganizationDefinition not] 
  		thenCollect: [:ea | ea className]) asSet.
  !