There may be a simpler way, but one way would be to sync the Tour with a different PC that is also running Outlook. Export the Contacts from Outlook as an excel file, then email the file to your work PC and import the contacts into Outlook there.
As an alternative to using another PC, you could make a backup of the Tour, then use ABC Amber BlackBerry Convertor to extract the contacts list in a format that could be imported into your work Outlook.