Hi Jason,
Thanks for you reply.
Your reply regarding the Recordset is helpful.
3) you need to create a master detail page set. The master page is a page that shows all of the products in a list with a link to a detail page. The link to the detail page passes the productID as a querystring variable.productdetail.php?prodID=2

The layout of my website is different and does not have a master detail page for each product.
When mouse over the thumbnails we can see the enlarged image of the product. See the link:
colored_gemstones_rings1.html
Regarding databases:
You can either do that by manually adding new records to your tabel suing a tool like phpMyDAMIN or SQLYog to access your database… 
I looked at the document phpMyadmin and SQLYog in their respective web site and I can say it’s very complicated to me and it does not help me. I have no knowledge and experience in with these complicated software.
...or you could create an administrative back end site to manage your database using DataAssist. see the "How to create an Administrative back-end" tutorial in the How To section of the DataAssist support page:http://www.webassist.com/support/dataassist/

I looked also at your WA link about ‘Administrative back-end’ of the Data Assist. The problem is, I have to buy extra software from WebAssist to accomplish the database, and it’s going to cost me extra money that I cannot afford. This was advertised differently when I bought the eCart from WebAssist. I am really stuck and frustrated.
Here are the advertising features about eCart in WA website:
New Features in eCart 5!
o Quick set up and configuration
o No database knowledge required
Here are the extra software that I will need to make a ‘Administrative back-end’ according to the Support data assistance document:
Create an administrative back-end with WebAssist extensions
What Do You Need to Start?
Dreamweaver 8, CS3, or CS4
DataAssist
Digital File Pro (Dreamweaver CS3 or CS4)
SecurityAssist
Cookies Toolkit
Validation Toolkit
CSS Menu Writer
As you can see I have to buy all the above software to make an ‘Administrative back-end’ and this is out of my possibilities.
Sorry to say that but I am really confused and frustrated.
Regards.


