Hmmm it's not easy in Blogger. Are you using the original theme edit or the new version where you drop and drag on to the layout?
You can get ads between the post, like between post 1 and 2 and then so on.. But then only three ads unit will be shown. So if your home page is displaying more that 4 post, then there will be ads between first four posts.
You can not install plugin in blogspot. You need to edit your template code for this. Can I see your blog? plz post the URL here. Also tell whether its classic template or new blogger widget template.
OK.. So I think you are using classic template. Now in your template code, look for following tag <$BlogItemBody$> And insert the google adsense code after this. This will give something as I mentioned in the post above. But you will have just three ad units. Give it a try and if you face any problem, feel free to ask.
ok.there is an default secion to add adsense in blogspot.what is the best way to add adsense to my blog? Typical way or blogspot section?
The section you are talking about is not for adding Adsense ads. Its for applying for and creating adsense account with Google. Blogger gives the facility to apply for adsense account through blogger.