Hello Sajid, welcome to the VMware Community forums. You can find out a bit more about VMware here.

VMware provides a number of free products that you can get started with as you learn about virtualization and how to leverage virtualization to enable that single PC or server at home to become a multi server test environment to extend your MCSE training.
VMware Player - http://www.vmware.com/products/player/
VMware Server - http://www.vmware.com/products/server/
VMware ESXi - http://www.vmware.com/products/esxi/

For each product check out the FAQs page. For each you'll also see a documention page which provides some good material to get started with. ESXi is the most powerful of the 3, but has more restrictive hardware requirements. Player and Server can both be installed on Windows or Linux. ESXi does not require an underlying host. I would suggest starting with Player or Server and then moving to ESXi. ESXi is part of VMware's flagship vSphere product so what you learn with it won't go to waste.

Dave
VMware Communities User Moderator

New book in town - vSphere Quick Start Guide -http://www.yellow-bricks.com/2009/08/12/new-book-in-town-vsphere-quick-start-guide/.
Do you have a system or PCI card working with VMDirectPath? Submit your specs to the Unofficial VMDirectPath HCL - http://www.vm-help.com/forum/viewforum.php?f=21.