My first I need help post. I've ordered a new iMac and need help with migration. I have an external hardrive with all my time machine backups on it. Can I migrate all backups or do I have to select one date to work from? And if I am missing licence codes for a program or 2 will they copy to new mac in working order? And lastly, if my MacBook has 400firewire and the iMac has 800 am I out of luck in terms of doing a tethered migration? That last one sounds obvious but I'm not sure. Thanks for the help.