Have just installed the UK 2008 version. You cannot use the new updated file in your previous version but you keep the old programme and your backup. Beware though if you use payroll, it will not work until you register it and to do that you have to ring Inuit but only up to 5.30pm. I did'nt realise this and I want to use payroll but will have to wait until to-morrow.
ken