I'm looking to create a blog using this theme : http://themes.okaythemes.com/medium/ As you can see on the demo, when you scroll down the page, only the content area is scrolled, the sidebar is fixed. Is it allowed to put adsense ads in that kind of sidebar??
Third time this has been asked and you can find the code posted in the adsense section on DP as to how to do it. I think it's okay provided it doesn't overlap content/ads. As your not modifying the code, nor are you putting it in a pop-ip window.
Yes it is okay, like adsenseplr has answered. You need to control the way the ads appear on your homepage, otherwise the face of the website won't look as you'd love. Just place the ads professionally, make sure you also specify the type of ads that are posted, and let the background colors blend with the theme of your site.