i must me a fool!

[Slayer103]

im new to this forum and model and skin editing all around, this is my first attempt at useing a custom model i downloaded the crossbow footman witch only came with a model file. I imported the file and added it to a custom unit but when ever placed it showes up as that checkered green and black box. I think its a skin thing since i dont have the skin file and the portrit file but they look like they can use the footman ones the game came with can someone please tell me what i need to do to fix this problem? help a noobie out?

is there any tools or other programs i need?

the model im trying to import is

http://www.hiveworkshop.com/forums/models-530/crossbowfootman-227068/?prev=d=list&r=20&c=3&t=1

 

[UgoUgo]

Try doing with this tutorial
http://www.hiveworkshop.com/forums/models.php?id=xsvhqy&p=tutorial_import