Kateedyd, 68classifieds, like most interactive web sites, combines a lot of different components to control its collection and display of data.
I have no formal training in programming or anything web related and just learned on the fly. With a little tenacity, ambition and some time I dont think you should have a problem picking up the basics. The biggest hurdle right now appears to be a lack of an overall internet foundation.
I guess if I were in your shoes, I would visit
http://www.w3schools.com/default.asp
There are many good examples and tutorials on HTML (hypertext markup language)and CSS (cascading style sheets). These are what is used to control how your pages look, their colors etc.
In the right column near the bottom are a couple tutorials called "my first html" and "my first css" they give you a short crash course on what html and css is.
If you still need more to sink your teeth in just do a google search for beginner html tutorials.
the "Dummies" series of books are also very good when you are starting from the ground floor.
HTML 4 For Dummies (Html 4 for Dummies)
and
CSS Web Design For Dummies (For Dummies (Computer/Tech))
would be a couple good books to get. They are usually written for the total novice and very easy to understand and follow along with.