I just checked out Amazon's video widget and it's a piece of cake to use. Once you're in the Amazon affiliate interface, you just:
- Click on Build Links/Widgets
- Click on ‘Add to Your Web Page' under Your Video Widget
- Click on Upload a Video
- Browse and Select a video to upload from your computer
- Agree to the Terms
- Give Your Video Widget a title
- Upload the Video and wait for it to process (Refresh the page to check the processing status)
- Play the Video and Click on Add Product at the point you wish to insert the popup
- Enter the name of the product you wish to insert
- Click on the Add Product button beside the product
- Save and preview your video
- Grab the code and embed it on your site
In the example below, I added a book called The Ultimate Guide to Spas and Hot Tubs : Troubleshooting and Tricks of the Trade