Custom Mapmodels

[TackyMan]

I wanted to add some of the included mapmodels that you have to mod to get to my maps, but I had some truoble with the code. I HAVE READ THE DOCS ABOUT 5 TIMES. I type "mapmodel 0 0 0 0 snowsail then, i type newent mapmodel 136, and the only thing that pops up is the enitity sparkle. What am I doing wrong? how much of the file path do I need to include?