Sorry, but that's exactly what I haven't been able to do. When I replace "Button" with <img src="Images/Buttons/PeriodPerf_Results.gif" width="127" height="27" alt="PeriodPerf_Results.gif" /> I just get a blank space instead. Neither of the buttons appears.
UPDATE: ACTUALLY, I take that back. I just made it work well.
Thank you for your attention