You have to set up an account with the parameters you use at work and it
should work okay.  Under Tools | Accounts | Mail | Properties | Advanced,
set it at home to leave a copy of the message on the server, so you can
still access it from work.

You can also swap out files of messages between the two computers using the
method in the last paragraph on this page:  www.oehelp.com/backup.aspx

steve

Check with your mail administrator at work.  They have to allow external
access (via the Internet) for you to be able to access your work mail at
home.   If they allow this, they can provide the server name and other
account settings needed.

You can either add an account to your existing identity in Outlook
Express or create a new identity so that you can keep the work and home
mail separate.

How to Create and Use Identities in Outlook Express
http://support.microsoft.com/?kbid=209169

And as Steve said, on your home PC for the Work account you'll want the
leave a copy of messages on the server (Tools, Accounts, Mail,
Properties, Advanced) if you are using POP3 access so that the work mail
will still be accessible at work.