lectora 11.1

Is there somewhere that I can download older versions of lectora? Since I have upgraded I have been having random problems. I am not sure if they are related to the upgrade but at this point I am willing to give anything a try.

I have been working on a course for several months that has a custom flash player/videos. A few weeks ago all of the videos started scaling about 10% smaller then they should be. I have been unable to determine what could be the cause and think it could be the 11.3 update.

Thank you.