...there are a couple of ways to go about this, depending on the items you need to do.:
1. If you don't actually need access to the stuff already on your home computer, simply find out the online webmail site for your ISP/mail server, then access the site online and you should be able to use your email.
2. On the other hand, if you need to check things that are already on your computer's email client, from your daughter's computer, then you'll need to use a VPN, or possibly Remote Desktop Connection.. Windows XP, which has Outlook Express has Remote Desktop access options. This would require permissions and IP addresses to be given by you but would then allow you to "take control" of your home computer and use your Outlook Express program.
Hope this helps.
Grif