Know to do this ???

[.Darkman]

Hey people I need something that can be achieved preferably by html and if not possible by html then by PHP.
Please help me if you can.
I need to know how to do the following.

Note : the extension .html is optional. It may be .php too


I'll be having webpage http://mysite.com/index.html
Where i'll be having sections.
Like say News, Article One, Article two etc....

I'll be having http://mysite.com/admin.html

where i can login (I can work out the password protecting).
There will be some text boxes there.
News, Article One, Article Two etc . . .
The content i enter there show up on http://mysite.com/index.html in their respective places.

This is much similair to the html boxes used in Cerberus, Helios, Themis and other themes. So i am sure Bloc can help me out with this.

Please help. Thank You