Join table with acts_as_list?

If anyone can point me in the right direction, I’d appreciate it.

I thought I’d recently seen an example of a habtm relationship where
the join table used an acts_as_list to keep the ordering of the
relationship. Does anyone have a slick way of doing this in 1.0, or
was it something in edge rails that I’m thinking of? (The
new :through parameter maybe?)

Duane J.