I want to have secure shtml pages on my site

with apache

I want a secured area encrypted with shtml method.

But I do not know how to get started: i have skills in php mysql and html .

second quetion: is the transfert of shtml pages from my site to the client side secure?
and is the ftp transfert from my computer to the site via the internet secure?

If you want secure HTTP connection, then I suggest you get SSL(secure socket layers) - http://www.openssl.org. Have you noticed that some websites start with https://? Well, that 's' stands for secure, and means the webserver is using SSL. SSL is the current industry standard for secure HTTP connections.

I don't know much about shtml, but I believe, it's getting obsolete.

As far as I know, FTP connections are never encrypted, so therefore not absolutely secure. Use SSH/SCP (secure shell / secure copy) instead if your host supports it. Basically, ssh lets you log into the server through an encrypted connection, and scp lets you copy a file, or files, through an encrypted connection, to another machine. These are Unix/Linux commands btw, so if you only have Windows, you'll need some sort of program which will let you use those commands, such as Cygwin ( http://www.cygwin.com/ ).