Front Camera

I installed this on an iPhone 4 about a year ago. It worked perfectly. Now when I try to use the front camera the image shows inverted.
Is there a way to fix this? How can I lock the orientation if I want to?
There seems not to be an option for that in the settings. This is my favorite app to play with and my kids love it.
Too late to ask for a refund.
Am I just S. O. L. ?

Ghjkjgtddgj about Green Screen Movie FX