luv328igirl, your report shows your machine is running an older version of LW, which uses the old java 1.3.1. You can update via your Pro page. That might help with the crash.
In addition to angelsonico's good advice,
if Quickime still won't play your movies, try one of the following free players.
http://www.videolan.org/vlc/download-macosx.html
http://sourceforge.net/project/showf...group_id=62947

btw--what is iShareit? LW is free (ad supported), or you can get the ad-free Pro version (jnow $19.50) directly from LW. http://www.limewire.com/english/content/home.shtml