Query/List Box on Forms

[Michelle]

I have a contact database I'm trying to create. I created
a query to filter contacts with the last name beginning
with "a". I want to be able to create either a command
button or toggle button that when clicked, the form I
created for the ContactID information opens up. The form
contains a list box that will show the contacts with last
names beginning with "a" and when a person names is
clicked on, it populates the contact info above on the
form.

Thanks,
Michelle