if its wordpress simply put your adsense code by reading the index.php file. If you are not familiar with xtml/php I think you better get advice from somebody who knows.
It's not that easy. You must have a counter so you only place max 3 ads/page. If you have 10 posts/page you cannot place 10 ads as this will brake the TOS.
actually if you add adsense code on the index file, 10 ads for 10 posts will not be displayed. adsense will display only 3 and then will not show any ads for the rest.
You just insert Adsense codes between the two paragraphs, like this: <p>first paragraph</p> Adsense code here <p>second paragraph</p> If your site is phpbb, vbulletin, wordpress, there are Ad mods/plugin for that, you need to search for them.
Above info is correct. Also, use the square adsense advert and blend it with your background. This has been shown to elicit a high CTR with many bloggers. Good luck!
i am using wordpress........i will try it...and come up if thr is any prob...thanx for ur great replies...