Flash Lite 2 Split Image

Not as if you are doing what you want. If you just need to make the image split, you can make two copies and apply dynamic masks, but masks tend to be slightly intensified for mobile phones, so this may not suit your needs. It would be better to split the bitmap at author time and just keep the two halves glued together until you need to separate them (if that's an option).

However, there are no other good options as Flash Lite 2 does not have any of the bitmap-related features you find in AS3.