如何将SQL 2005数据库复制到另一台计算机？

I'm trying to rebuild a web server in a virtual pc. Installed required software and Microsoft SQL Server 2005. I've had full backups of my databases but it is not possible to restore from those backups in this new installation. By the way, backups are fine, i can restore from them on original server.I'm trying to rebuild a web server in a virtual