what is that?

the upper and lower parts have gone missing, how can I fix it? they just vanished

You need to be way more specific as to the "parts" you are referring.  A picture would be nice.

I lost the self logo in the upperside and all the ads for boonex in the lower

What kind of changes have you made to the site or templates recently before you noticed the loss.

here atr the screen shots  http://www.bong.co.il/images/71574072412.JPG and http://www.bong.co.il/images/423807927444.JPG