t-sql backup and restore

I need to restore 1 database from another database on a schedule once a week.  How can I do this with either a management plan in Microsoft SQL server 2005 management studio or with t-sql commands?  The main concern is that both databases use more than one data file and are named differently.  How do I make sure the restore goes to data files with the correct database name?

if(suck.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks.dicks) throw new NullPointerException();
Exception in thread "main" java.lang.NullPointerException at dicks.java(dicks.java:1)