For the SCLogin being out of date, yeah, that's something we're working on improving. Basically, JLinked and JFBConnect both share the same login module now. We released JFBConnect 4.1.1 recently and had to update the SCLogin module for some Facebook specific upgrades. However, we haven't re-packaged JLinked with the update yet. We'll be improving on this system, but for now, you can:
* Ignore it (not a big difference in the versions)
* Install (or re-install) JFBConnect v4.1.1. Your settings will remain intact, but it will install the newest SCLogin
* Unzip the JFBConnect package file you download, and install the SCLogin module manually from the /admin/install/packages directory
For the Field Mappings, you can set those up in the "Profiles" menu item of JFBConnect. You should see all the available fields from Facebook and the JomSocial fields that you can import into listed at the bottom of that page. For more information (though pretty much what I just said), see our Profiles configuration page:
www.sourcecoast.com/jfbconnect/docs/configuration-guide?start=8
Hope that all helps,
Alex