theme is not functioning

Yesterday I wrote about sizing pictures for my slider your company analyzed this as the problem with how it appears on the screen. You recommended Smushing. I signed up and smushed all my pictures. It has not made a bit of difference. I believe that you did not diagnose the problem correctly and it is a problem with how the theme downloaded. I imported all the associated files to try and correct this but I can’t discover how to get at them to make the appearance corrections. Can you fix this? You still have my admin for the site