The old version of the plugin had a somewhat complex integration codes, while the second one has a lot of hooks and actions as you might have seen, making the integration between our and some third party plugin much easier.
Having that said, first part of rework done on the plugin was to strip down all third party integrations from it. This allows us to have a clean and simple core plugin and a better integrations approach.
For this reason the integration will no longer work. While we did keep the backward compatibility to core functionality of the plugin, this was not possible for third party integrations.
I did create a plugin for this new version of the wordpress plugin that connects the Job Resume manager as well as Ziggeo and should work, however it is not yet released.