I love your one-page checkout and all 3 default templates are very simple. I bought your component because over half of my client's visitors called and said that they couldn't figure out how to check out from VirtueMart's default checkout pages. Not good!
Anyway, I am unable to get my payment method to work with OPC. I am using Authorize.net SIM - SSC (simssc) payment plugin for VM2 which seems to work fine on its own: http://plugins.online-store.co.uk/autho ... t_sim.html Can you tell me why it's not working or advise an Authorize.net SIM plugin that is compatible with your One Page Checkout?