Using Dreamweaver to rebuild my site.

Ok, I have an online store that I built using Frontpage... I am not rebuilding it using dreamweaver CS5.5... updating and adding some new things... There is one thing I have not figured out how to do though... In frontpage, I was able use the Photo Gallery to add pictures to my site that when you clicked on them, they opened up in a new tab larger so that my customers could see them in greater detail without me having to put huge pics on my store pages. Can comeone tell me how to do this using Dreamweaver? I do not know anything about writing code... and doing this using the visual editor... Thanks much for your help...