Within your Wordpress blog create two pages, one page should be selling page (pitch) and will contain "buy now" button while the other will be seen by the customer once the purchase is complete.
- Complete My Site Information within Your Clickbank.com Account
It is important to edit Advanced Tools -> Secret Key and enter 8+ digit password, which will be used to encrypt communication between your website and clickbank.
Another important field to fill in is IPN Url. After you install the plugin to Wordpress you will be given IPN Url to enter.
- Complete My Products Information within Your Clickbank.com Account
This is where you will define your product. Each product should have price and "thank you" url defined (see step 2). This is where ItemID will be defined. ItemID is unique number each product has, plugin will ask you to enter this number.
Enter your Clickbank username, define products, change E-Mail text, design etc..
Plugin comes with detailed descriptions next to each field and for every step.
- DONE! You are ready to start selling.