I don't know, the php code should probably work, won't hurt to try it.

You will have to re-do the changes to your templates for sure. You will also have to register the variables to the templates, and there is a new way or writing variables for display in templates.

One thing I would do is edit the plugin and change the hook from global_start to global_bootstrap_init_start. global_start isn't truly "global" in VB4.

As this is now a VB4 issue though please make a thread for further questions in the VB4 forums, maybe post a link to it here so I see it.

confirmed: not working on vb4 :D