Help please- migration PC-PC with XP Pro

I want to migrate a PC’s complete contents data and programs to another machine. MS have issues letting you do this which are normally fixed by using the second repair option in the setup menus. However in this instance i dont get the opportunity to use this option as its not presented. I am using an XP Pro version 2003 with SP2 setup CD. Is there any product e.g. another MS XP version or third party product which will allow this. Any other advice would be welcome. Thanks in advance.