The SCLogin module can show profile pictures from JomSocial, EasySocial, Community Builder, Kunena and K2 (and probably something I'm missing off the top of my head).
To configure the SCLogin module to show that users picture from JomSocial, you should set it up with the following settings:
* Registration Component: JomSocial
* Enable Profile Picture: Joomla
That should show the avatar for you. I hope that helps, but if not, let me know.
Thanks,
Alex