Graphics Issue with Retina Mode for iPhone Cocos2d-x 2.0.3

Hi,

I am done with base build of 480x320 iphone, now I am trying to use the same for Retina mode.
I am using following method to manage resources:
[[http://www.cocos2d-x.org/projects/cocos2d-x/wiki/Mechanism_of_loading_resources]]

this turn out very helpful as most of the graphics it picks up automatically, but I am facing issues with some of the graphics, they are not getting placed properly.
It’s a tile based game & I am using getContentSize() method to get position for next tile, but it’s ignoring transparency around it while calculating width & height of the image.

I am bit confused because other GUI part is working perfectly fine, is it issue with Cocos2d-x 2.0.3 or I am doing some mistake?

Solved:
It was wrong file format from graphic team while exporting from texture packer.

Thanks,
Paresh