Thank you again, dklynn. I really appreciated your post full on informations. Finally I had some time to read your article. I must say, as a complete noob on htaccess/mod_rewrite/Apache, I didn’t understand the most of it. But I still think that this is a good thing, because when I don’t understand completely something I tend to investigate on it further until I completely understand the whole thing and more. 
I’ll take my time to study it in the future. If I could suggest you one thing, is to report your post above in your article. This:
In short: {protocol}{domain}/{URI}?{query string}#{anchor}
http:// %{HTTP_HOST} %{REQUEST_URI} ? %{QUERY_STRING} http:// datakoncepts.com /seo.php ? query=nothing+special
is extremely helpfull to understand how they works and how to use them.
Thank you again for everything!