Hello,
You can edit the text in the following 2 locations:
.jdGallery .slideInfoZone h2 {
background: transparent none repeat scroll 0 0;
display: table;
font-size: 5.5em;
font-weight: normal;
left: 0;
line-height: 48px;
padding: 0 19px;
position: relative;
text-align: left;
}
template.css line 1633
.iacf_subtext {
font-size: 3.2em;
}
template.css line 1747