If you plan to do your accounts (for example) at home you will need to take a copy of the work database and install it at home.  The easiest way to do this is to:

At Work:

Create a backup of the database (see Database Backup)

Copy the archive file (located at c:\program files\onyx software\onyx Garage Invoicing system\data\backup files” or wherever you chose to save it too (if you have a CD writer Win XP can burn it directly to CD if you save the file to your CD drive))

At Home

Restore the database (see Database Restore)

Simply reverse the steps to copy the data back from home to work.