My e-mail is hotmail and Outlook Express will not accept this. What can I do? Help!!!

How long have you had the hotmail account? If you have not accessed it using Outlook Express before it is unlikely you will be able to now.

Access to POP e-mail accounts from Hotmail is a subscription-only service, and is not available to free Hotmail accounts.
For more information about the subscriptions available to you, visit the subscription information page.

People that have been using OE to import their mail for years still seem able to get it ok.
That said, what version of Outlook Express are you using? Have you been through the set up new mail and on the 3rd page where it says 'My incoming mail server is' and choose http.
In the My HTTP mail service provider is box, click Hotmail.

http://support.microsoft.com/kb/220852