Well, since i used mac on lab and MacBook Pro at home, so i need this helpful apps to use my irreplaceable windows apps. Hahahha.. So, download VMware Fusion .dmg from
http://www.vmware.com/products/fusion/overview.html and get the fifth version for Mountain Lion. And install it as usual, now the fun part begin.
Add new Virtual OS, the one i used is Windows 7. Create it's image file (.iso) use Disk Utility.