How to ad adsense manually?

Hello,

I would like to manually ad adsense ads to some of my pages and posts. Every adsense plugin that i have found so far fills up your entire blog with adsense ads, and puts them in random positions.

I dont want adsense littered throughout my blog, but there are a couple of pages i’d like to have it on, in specific spots within the content.

There was a plugin made a couple years ago that did exactly what i wanted, but it doesnt seem to work with 2.5.1

it is located here https://www.philhord.com/phord/adsense-inline-with-wordpress-blog-posts/

anyone with an idea of how i should go about this, would be appreciated.

Thanks.