Implementing Payment Gateways in ASP.net Web Application

I an developing a web application in ASP.Net using C#, under .Net Framework 4.0. Now its time to implement payment page in that application. I am asked to provide the facility of every payment mec开发者_运维百科hanism (pay-pal, credit card, visa card, master card etc.)

Now to be honest i even don't know the difference among these card type :(. Please guide me how to achieve this and if possible also suggest the tentative time for implementing this.

PayPal can take just about all of these types - why not just have them process everything? Its hard to give you an answer of implementation time as I have no idea what your application is like - but its fairly easy to setup.

Here is a paypal for dummies link:
http://www.dummies.com/how-to/content/adding-paypal-to-your-web-site.html