right ok, i have been trying to figure out pack 3d for hours now and i dont have a clue,

i copied the barrel folder and changed all the names, tried to clone the now copied dat file, i dont know if this did anything or what it did, i tried importing my model (im using a simpler model for testing its a piece of floating box i guess) it said this object cannot be imported, and the same for the textures. i dont have a clue what im meant to be doing, if someone has a link to a good tutorial on what im meant to be doing that would be great, otherwise could someone pm me some instructions please?
thanks again you guys rule