There is not such thing as Outlook Express 2007.
It is either Outlook 2007 or Outlook Express.

Note that this is an Microsoft Office Outlook forum.

Outlook Express is family of Internet Explorer and Outlook of the Office
family.

Here is the link for the right forum
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.
public.outlookexpress.general

Good Luck!