Shopping cart using MiGS

[blumenhause]

Hi,

I've been assigned a new project - online shopping website for a shop that sells TVs, music systems etc..

I've to start from scratch and I've no prior experience working with such an application. What I've to use is MIGS (Mastercard Internet Gateway Service) coz thats what the bank here support.

Where do I start from? I was hoping to use Dotnetnuke but it does not have any built-in or custom modules that supports MIGS.

Could anyone guide me how to go about laying a foundation for this, like where to refer for starting designing the database and application?

Regards,
Manu