Lightbox V2 problem

[A800]

1) Script Title: Lightbox V2

2) Script URL (on DD):
Link:
http://www.dynamicdrive.com/dynamicindex4/lightbox2/index.htm

3) Describe problem:
How would i add a caption to in the white box when you click on the image?

[ReadyToLearn]

<a href="images/image-1.jpg" rel="lightbox" title="my caption">image #1</a>
Source: http://www.dynamicdrive.com/dynamicindex4/lightbox2/index.htm