put a wordpress blog into the first page of my site.
Then remove whatever you have there and install WP in the root of your site
(the example you gave is NOT doing what you are asking for)
How your blog will look like – that’s entirely up to you. It is defined by the theme used:
http://themes.wordpress.net
To make your own:
Theme_Development
what i am asking is how o i put it there? how can i set the main menu i have ontop to be the header of the wordpress. you know what i mean. how can i make a full menu a header?