I'm having trouble with creating a custom step for magento onepage checkout. Link of the tutorial: http://www.excellencemagentoblog.com/magento-onestep-checkout-add-step . The problem is, when I click 'continue' button on my custom step, it always redirects back to the cart page. Looking for help. Any suggestions how to debug redirecting? or how to see where is the problem. I've checked log files, it doesn't say anything in there. Where to start looking for problems? Thanks in advance.