I don't know if this is of general interest, but I have been
maintaining an update stream for Squeak trunk in the traditional
V3 image format at
http://www.squeaksource.com/TrunkUpdateStreamV3.
It can be difficult (or at least very annoying) to follow the
update stream and work through the various errors encountered,
so I put a link to a copy of my own V3 Squeak 5.2 image from
the www.squeaksource.com/TrunkUpdateStreamV3 page.
This V3 image can be run with either an interpreter VM or a
Cog VM. I use it myself to ensure that the interpreter VM stays
healthy with respect to various changes introduced in Squeak trunk.
I put the actual image download file at:
http://squeakvm.org/~lewis/Squeak5.2-in-traditional-V3-imageformat/Dave