I am using Windows 7 and trying to find a right application to get advanced features of the "[Ken Burns effect]", like pan and zoom. Unfortunately Photostory version in Windows 7 is not able to get effects. I have access to Photoshop in other computer
Any software with keyframe support can do this. This answer provides a rough walkthrough of how you can accomplish the look you are describing with just keyframes and positioning/scale keyframes.
Check out Lightworks' free version.
If you want a free and open-source option, ffDiaporama is quite good. It's mainly geared towards making photo slideshows (but allows for video too), which are rendered into a video file.
It supports doing Ken Burns effects (and any other transforms, using keyframes), and works pretty similarly to other video editors in that regard.
The UI may be a bit non-intuitive if you havn't used keyframeable video editors before, but it's pretty easy to use.
There's a video on how to do Ken Burns -style pan and zooms here.