I noticed a couple of problems with viewing the slideshow with IE 7 today.

1. In ie.css.liquid, replace the “Colorstr” attributes for the "banner .images" rule:

startColorstr={{ settings.gradient_color }}, endColorstr={{ settings.bg_color }},

2. In index.liquid, replace rotate: true, with rotate: true <= i.e. get rid of the extra comma

3. In styles.css.liquid, completely remove the "html, body" section:

html, body {
  margin: auto;
  width: 960px;
}

and add margin: 0 auto; width:960px to the body section underneath it. It should end up looking like this:

body {
  margin: auto;
  width: 960px;
  background: {{ settings.bg_color }};
  font-family: Helvetica Neue,"Arial",Helvetica,Verdana,sans-serif; 
  font-size: 0.8em;
  color: {{ settings.text_color }};
  padding: 7px 0;
}