Well the patch just came out, and you posted on a really old thread. Norbyte needs to update LSTools, yes, but give him a few days. You shouldn't have to unpack main anyway.
I'm not sure why your treasure table mod isn't working.
It's in the Data/Public/yourmod/Stats/Generated folder? I've had some trouble with the crates early on dropping magic items, so test in the editor in Cyseal before you try ingame. Also, did you lower the level requirement for legendaries in the "item types.txt" so that a level 1 character can actually get the legendary drops?
Possibly it would work if both of you had the treasure table text in your data/public/main folder, but I'm not quite sure.
