[Blind-sysadmins] Porting to exchange.

Hello, I'm moving a company across to an exchange mail server shortly. The problem is, until now, they've been using the addresses provided by their ISP. This means, all their sent messages are saved locally in their sent items folder in Outlook. When I port them over to Exchange, they will not have access to this folder. Any ideas how I can get around this? I'm assuming at the moment that I could back up their esent items folder and restore it into the exchange profile when it's created. Will that work? I'm working on assumptions at the moment as I'm only starting to work out the migration plan. Any insites would be appreciated. Thanks Regards Darragh Ó Héiligh