1. Creating a Custom S-Control.
2. Add the S-Control to the appropriate Salesforce screen.
3. Customizing the S-Control frame settings in the screen.
4. Previewing the screen.
If you have chosen to use the Salesforce.com Login option for S-Control Authentication Type in the plugin configuration form, you need to append the following text to all of the S-Control URLs
&salesforce-user={!$User.Username}
So, if you were to choose this option, your Salesforce.com Account S-Control will look as follows: