App Binary Rejected for iPhone5 launch image

here is what i got in the rejection:

iPhone 5 Optimization Requirement  - Your binary is not
optimized for iPhone 5. As of May 1, all new iPhone apps and app updates
submitted must support the 4-inch display on iPhone 5. All apps must include a
launch image with the -568h size modifier immediately following the portion
of the launch image’s filename. Launch images must be PNG files and located at
the top-level of your bundle, or provided within each .lproj folder if you
localize your launch images. Learn more about iPhone 5 support and app launch
images by reviewing the iOS
Human Interface Guidelines
 and iOS
App Programming Guide

I am having trouble figuring out exactly what resolution i am supposed to have with Which filenames…

I have 1 set of code for my app that scales for all devices and screen sizes…  So i typically dont use the default.png files.  now it seems i have to.  So can someone help me out with the basics of how i need to define these and at what screensizes for each file i need.

thanks

You need to have a file named exactly like this (case matters):   Default-568h@2x.png

It  has to be a portrait (vertical) image that is 640px wide and 1136px high.

Thanks for doing the footwork on this one fellas, this really helps everyone out!! Including us!

-Mario

You need to have a file named exactly like this (case matters):   Default-568h@2x.png

It  has to be a portrait (vertical) image that is 640px wide and 1136px high.

Thanks for doing the footwork on this one fellas, this really helps everyone out!! Including us!

-Mario