multiple domain in the same server

Hi, i'm a newbye of virtualmin. I've two domains cbr600.it and cbr600-italia.it. In the dns server these two domains point at the same public ip address. This address is assigned on a server (with NAT). With virtualmin i've created two virtual domain. In the first there is a forum, in the second there is only a index.html page with a comment inside. The first works fine, but the second point to the first. Can anyone help me??

Thanks.