First, so sorry for the delay! The PDF plugin runs as a separate installer.
Once that installer is running you can shutdown Army Builder and click the 'Retry' button and the PDF plug in installer can then proceed.
Or you can install it from our website here (make sure Army Builder is not running):
http://www.wolflair.com/rightframe.p...ntal_downloads.
Please let me know if that isn't working for you.