Great great! Thanks guys, for all the help. For now I just made windows-network mappings. And Tried them mutiple times and works fine. I'll use that in my exam today (about sme) after that I'll try that command based one. (With the wiki link) and try to set it up as it should.
PS. I'm really new to the whole linux and linux server.

Oh and I had to do 5 things with the SME. Wich for you guys is the basics. But someone who never worked with it. But I got it all working, mappings(

) NAT, users and groups,DHCP,DNS (easy with sME) print services.

edit: I have my exam at 11.15 (GTM+2) so.. keep your fingers crossed ';)