2 questions.

I want to be able to take credit card payments. How is this possible?

I have non-commercial version of hikashop. Everything seems okay. I've attached a picture, you can see add to cart icon but how can you add go to checkout icon. Thank you.

1. You will have to create an account with a payment gateway and configure the corresponding payment method plugin in HikaShop. I would recommend PayPal as it is the easiest.

2. You should create a menu item of the type hikashop checkout via the joomla menu manager.