Help about importing

[Dimi.96.srb]

help,i download some models,i import 2,they works,but i dont make them in object editor like is in tutorial how to import,i cant find art-model file-portrait-none,when i make it i use art-special,but with new models that doesnt work,help

 

[[K40$]-Spectre]

Explain it a bit more clearly plz.