Hi Roja,

First, welcome to the forums and to DotNetNuke.  The community here is generally VERY helpful in answering questions, but keep in mind that assistance will generally take place in the public forums -- by our assisting new users here, that help might benefit others down the line.

Second, much of your experience with DotNetNuke will be highly self-directed, and you'll likely spend a lot of time at first searching for resources.  It will take some time for you to familiarize yourself with the particulars of the framework.  Consider it an investment that will pay off down the road.

That said, if you are just getting started, I would recommend looking at these resources:

The DotNetNuke demo site, where you can play with administration,

The DotNetNuke installation guide, to deploy your own installation, and

One of the many DotNetNuke books to get you started.

Hope this helps!

Brandon