ok first things first - Breathe - in through the nose - out through the mouth - repeat.
Open Hubpages in a new window (so you can refer back to this) Click my account, click on the earnings tab then you will see 'Google AdSense - click on configure, this is where you put in your code. (copy and paste is the easiest) google will place ads according to your title and URL (and how ever else they have designed it - you do nothing more)
Do the same thing with your Amazon code.
In order to use items on you Hub from Amazon you should write at least 50 words regarding the product, you may refer to this Hub to get an idea
When writing a sales Hub - you can assemble your capsules first or as you go.
Make a text capsule, put in your words, click save. then align the cursor by the text again and look over, you will see an Amazon tab. Click on that, when you click edit it will ask you for specific links or choose keywords. If you choose keywords you will get a selection (you can choose the number of items you want to see). Once you click save then you can click the green arrow to align it next to your text.
Hope this was helpful!!