I hived a swarm last year from it, but I think drove them off by feeding them syrup that I had stored in a "really clean" pickle jar. This I collected and hived the first swarm and elected not to feed them at all. They stayed a week but then moved on.
Sounds like the pickle jar may not have been what chased the first swarm off
Should I cut them out of the tree and dump them on a piece of fabric set up as a ramp on the new box? Should I get real wax foundation and put them in the standard box? Should I just wait and see if they move in?
Wax foundation or starter strips may help in the Langstroth, but putting a queen excluder on top of the bottom board and containing the queen in the hive for a few days until she starts laying works well too.