New HTML Code
In your Webstarts editor, go to Insert and select HTML Code.
You must be a premium Webstarts user to add HTML.
Copy and Paste Code
Paste the code in the HTML box, then click Ok.
View Live Site
The plugin will appear on the page. Click on Save, then View Site.
Edit POWr Payment Form
Go to your live Webstarts website and find the new plugin.
Click on the Settings Icon in the corner. You are now ready to edit the plugin.