I need Linkedin plugin and have bought InviteX because of it!

One of the reasons I've bought InviteX was the ability to have Linkedin on it. I'm building a professional community based on Linkedin user and now Techjoomla has drop it.

It's very important to me in have it and my question is there is anyway to still use Linkedin plugin? I see the plugin is there in the package and I install it but not show in invitation page.

Please advise!