Forum OpenACS Development: Re: Scalability of acs_objects and acs_object_context_index

I think Greenpeace also upgraded a 4.2 site to OpenACS 4.6. You might contact them and see if they have their migration scripts around.

It would definitely be a service to the community to post these.

You might also talk with Jon Griffin: http://jongriffin.com/static/openacs/acs-conversion/upgrade