Well, that space at the top of the page in the Mystique skin is supposed to be there to display the site's title and taglaine. If you want to modify it, you need to go to the file skins/mystique/style.css, look for the line displayed below and change the padding-top and padding-bottom applied to that container.

#site-title{padding:4em 0 3em 0; position:relative}

Regarding the smilies, what do yo mean with this?

it pulls the path of the old domain

What do you do to get the old domain?

Hello!

I moved in style.css with you suggested me, and after breaking his head and try on several classes, found in # site-title p.headline the padding and modified it.

I do not know why the rose Menu, but already configured.

I appreciate your help!