IGNORE THIS POST NOW AS JAYARMA2LIB HAS BEEN UPDATED
Because jayarma2lib has not been updated to work with the 1.60 patch we have been pointed to a work around. That is a specific version of the BETA patch that is working with jayarma2lib. This will work even when you have applied the full 1.60 patch & is tested.
First, make sure you uninstall any previous beta you have by deleting the expansion\beta folder in your install directory.