Google Sketch up version 8


I have been utilizing google Sketch up version 8 since 2011. I had no problems with this software until I downloaded Sketch up make and style builder 2014! The other day I removed this software and it caused my Sketch up version 8 from 2011 to malfunction! All the files are no longer png they are skp files and know I can no longer retrieve my png files from Google Sketch up ver 8. ! How do I recover my png files again fromall this confusioin! I did not think this 2014 would corrupt my files in Google Sketch up ver 8. What gives I need assistance!