Open InfoPath form in Outlook ???

[Susanne Mohn]

hallo,
I have published a InfoPath form to a shared drive.
But if a user try to open a form in Ol2007 - New - InfoPath form the window
is empty - shows no forms - only if he open it one in InfoPath.
My Question: how can a user who did not create the form in InfoPath open it
in Outlook?
Where does Outlook get the list of forms?
or: fill the Favorite Folder?

Thanks for help
Susanne