Hello,

Another question i am stuck in..
can any one help me out with how to set up my email in my BB ?

You need a blackberry data plan.
As per your other thread, you don't seem to have this.

You need to pay for it, from your carrier.
Call your carrier to get it.

so this blackberry data plan?
what does it support else than email and bbm ?

The ability to use those applications, as well as the internet and most other applications that use data (facebook, msn, google maps, BB maps, twitter apps, etc etc)

well what's up with Wireless Connection,.. it's possible to use them via wifi

No its not.
They require you to have a blackberry data plan before even using them via wi-fi.
Wi-fi is a faster connection on a BB, not a "use instead" connection.

You will not be able to use BBM, Email, Facebook, BB Maps, Google Maps, and many other apps via wi-fi without a blackberry data plan.

You still need a data plan. Wifi is not a means to circumvent data charges.

What do I need a Data Plan for? - BlackBerryFAQ

and

Why do I need a Data Plan? - BlackBerryFAQ