The publisher ID and API key fields are needed so you can register the Springboard Video plugin with our servers.
If you do not have access to Springboard CMS you need apply for a FREE account so you can get yourself started with embedding videos on your blog/site.
You can easily apply for an account by visiting the following link - http://home.springboardplatform.com/.
Once an account is created for you you will get the needed publisher ID and API key which you can use to register the plugin and start embedding videos to your site.
Please contact me if you need any further assistance.
[ Signature moderated. ]