Steven, thanks for the advice, they were able to tell me how to fix the problem very easily. Since I am using PHP 5.3, all I had to do was comment out a line from the .htaccess file and that got rid of the prompt to download issue.
Now that that's out of the way, I have a new issue. I still have what amounts to two index pages. I got the gallery to run on the actual index, but when you click the navigation link for Index, it goes to shuttersnapstudios(dotcom)/index instead of just shuttersnapstudios(dotcom). I figured out how to change this link on each individual page, but if I do so, the changes are lost as soon as you change a page and hit publish. I've searched high and low and I don't know where showkase is pulling the link information from, so that I can change it there.