seaBreeze on Squeak
I managed to get the basic stuff working from a Squeak image, and some people from the mailing list agreed in packing the stuff Monticello-wise, but I still have to zip the image and put it on the server :(
Main problems with Squeak were (after getting rid of SXOR) "ifNotNil:", files (GIFs, JPGs,...), ColorValue (I did some nasty hack that should be changed), Collection protocoll (throughAll:, upToAll:,...) and some strange behavior of suddenly turning a subpane red with a cross through it and refusing to show any contents - dunno whether this is normal behavior.
I had a severe problem with _ in method names but worked around by recreating the CSSParser with the Squeak version of SMACC (after a hard time of finding out how to load Smacc into the Squeak image ;) ).
The current state shows the existing applications and lets you open the editor on it - I even managed to open a Squeak browser from the editor but don't know how to select a method - but some of the Javascript stuff seems not to work and before creating a new application with the wizard one probably should know how to compile classes and methods programmatically in Squeak...