You are registering to access your InnoShow campaign control panel.
Within the control panel, you can make campaigns for your website and purchase visitors to allocate to your campaign.
You can manage each campaign individually and setup additional settings for each campaign.
The registration process itself shouldn't take longer than a few minutes.
Make sure the email you register with is associated with your preferred payment method.
You will also need to verify your account using that email afterwards, so make sure you have access to the email.