Please "Mark as Installed" now that it is working.
As for moving it to under the avatar should be possible but I'm not really a style person.
At a minimum you would need to go mod settings -> Button Locations in Posts -> to None.
Then manually add the template hook to the postbit(_legacy) template where you want it to appear.
In postbit_legacy you probably want to add the code directly above:
Code:
{vb:raw template_hook.postbit_userinfo_right}
Then you may need to edit the postbit_pinterest_vb4 template as well to get it to display properly.