aerot

I just bought the new CRJ200 off of x-plane.org and unzipped the file which brings me to the CRJ-200-MAC folder. Once inside the CRJ-200-MAC folder I click on the CRJ-200.PKG. It brings up the install and I follow it by selecting the XPLANE9 folder. I hit continue... It says writing files, install time remaining about a minute, and then the installation has failed. Contact the software manufacturer for assistance. I'm using MAC OSX LION and X Plane 9. I don't know why the install is failing as I'm following the steps perfectly in the install guide. Any idea what could be going wrong?