Google ads

Right now, I’m using the kubrick theme for WP 1.3 A5 and I’m trying to get the google ads right above the the title of the post on top. (Website: https://r0x0rz.info). How would i do it? Would it look good? If not, Would putting it on the sidebar be better?

Another thing is, when I insert the java code, Sometimes it doesn’t appear in some places.