Thanks for help guys, i will appreciate, but it didn't turn out =)
Probably my computer which is wrong, now i double checked 3 times. Still nothing
thanks anyway
Woah. Is this the model you imported?
Units\Shin.Sangoxumusou III\Sonchek\Sonchek.blp
units\NightElf\EvilIllidan\Shadow.blp (Overwrites a default texture)
Textures\Zap1.blp (Overwrites a default texture)
Make sure you imported all of them, and made sure they were in the right paths. Then you have to CHANGE the model of a unit TO that. I'm guessing you didn't do that part.
After you have the paths set, you want to go into the OBJECT EDITOR. For testing purpose, just go into the footman unit's data. Top left corner, Units, Human, Melee, Units, Footman. Now in the right hand side of the window, the unit data appears. You want to scroll down to the part where it says, "Art - Model File". Double click it. There are three options. Preset, Import, and Custom. Click on the Import drop down menu, and find your Sonchek.blp.
Then put a footman in your map, save it, close the editor, and reopen it to test your model out.
If it still doesn't work, I'd suggest trying a simpler model first so you get the hang of it. Like, Boo
http://www.hiveworkshop.com/forums/resource.php?t=47472&prev=s=boo&d=list&r=20
To make him into a hero, you just need to put his model on a hero, or copy a hero and put his model there. Then edit the size/stats to match. Good luck!