I just downloaded the bonus Rapture expansion from cakewalk, and I realized that the only Rapture I have installed is the "LE" version. Doesn't X2 come with the full version, or am I mistaken? I re-ran the X2 installer and only selected Rapture to install, but It still isn't showing up as a VSTi. 

Only X2 Producer ships with the full version of Rapture. If you have X2 Producer try the Rapture 1.2.2 installer patch http://forum.cakewalk.com/fb.ashx?m=2683142

Thanks so much! I saw the patch with the serial numbers and such in my account, but there was no download link. It's working fine now!