OK - I would suggest my first solution.
I'm now going thru it with a bit details.
Create a form with two textboxes (create in design view)
Name them txtFromDate and txtThroughDate How:
after you've added the textboxes, rightclick the them, select properties, go to the "other" tab and insert the name.
In each of the queries, replace the [Type Start Date] with forms!theFormName!txtStartDate and [Type Trough Date] with forms!theFormName!txtThroughDate.
After this, add a button on the form (use the wizard). Select Miscellaneous and Run Macro. In the next step, chose your macro.
Why:
If you "keep" the start and through time in your form, and reference them in all your queries, you do not have to type them for every report.
I think this should save some time, Roy-Vidar