Report displays by Month based on user input

[ghostman via AccessMonster.com]

I have this training report form with a listbox containing list of reports.
The user will select the report they need from the list box and click on a
command button to preview it for printing.

Now, there is a report that should display training history by Month. So,
what i want is to click on that report and it should pop up a small form, a
window (or whatever) and that form will have a drop down list of Months that
i should select. Either to display the report after selecting the month or to
add a command button to display it.

How can i do this?