First, search this forum for problems with the Hatten font, which causes all sorts of licensing problems. At least a couple of articles will lead you to the MS Knowledge base regarding a way to make the Hatten font licensing problem shut up.
Second, in the form, you can set up a double-click routine that activates the common dialog box. Search the forum (again) for "Common Dialog" in order to find Pat Hartman's post on how to use the standard windows File Open dialog box.