ChowChi-Ching,
It seems you've registered with Network-Solutions so you should be using a back-end management tool called Cpanel. Take a look under an icon called "Fantastico" to see what options Network-Solutions offers in preloadable content management software. At a minimum you should have PHP Gallery / GALLERY2 / COPPERMINE available to you. All of these offer plug-ins for shopping carts from third party developers, free. All of these are customizable and offer things like password protected areas for client review. They are very easy to set up and you simply link the gallery to your home page (You design the cover and the program basically does the rest. There are also plug-ins available for LightBox which gives the look of a Flash site without the search engine drawbacks of Flash. Check it out, you may already have everything you're looking for and just don't know it yet

I run a version of the COPPERMINE gallery just to host photos for friends and family, on a site of mine that's unrelated to photography. You can see it here - http://jet-visa.com/gallery
(the part that says password protected, use 12321 as the password)