I know whats he's talking about. The lucky 38 Furniture simply does not show up in the Geck. If you go to the lucky 38 cells in the Geck, all you get is an empty cell with walls doors and that's pretty much it. I was wondering about that myself when I was looking to setup a bar in my own Mod. Went looking for bar goodies since the 38 has some pretty impressive bar setups. But the cells are void of trimmings.
It's a multibounds (room marker & portal) issue and, if you use the multibound fix the GECK will CTD every time you try to open the Lucky 38 worldspace.
your going to have to work blind with X,Y,Z's if you want to place anything in the cell. This is a GECK Bug.
cev