All, tread carefully here.
If I understand correctly, the 13th floor downloads shouldn't be directly sourced into the items table. It requires some specific manipulations to work with EQEmu, though I don't recall what those were...something about columns being added, redefined, or used for other purposes somewhere along the way.
In any case, search here for threads on this. There were at least 2 seasoned world builders who've done it. But both agreed over a beer that it wasn't easy or automatic.
