After you purchase any product, you will be sent an email with a registration link inside for each individual product bought.
You need to click that link, which will take you to a registration page, where you will create your account and password. That login & password will give you access to only the corresponding product.
You can then login here at any time: http://www.5minutemarketing.com/member-login/
If you purchased multiple products, you will need to complete the steps above for each product you purchased.
Go back to your email, find the next email containing a registration link for your other products, and click on the link inside. This will feel like you're registering twice, but don't worry, if you use the same username & login...the system will add the next product to your account and you will be able to access it just fine. :-)
Here's a screenshot of the "Registration Email" you will get for each product bought.