Andrew,
Are you seeing those fields on the Registration page where those are the labels for fields that the user can fill out? Our plugin should be loading the language file for JomSocial in the current user's language. If there is no language file defined for the user's langauge, then the strings won't translate, which may be what you're seeing.
What you can try is to update that code in the /plugins/socialprofiles/jomsocial/jomsocial.php file. Around line 93, you'll see:
$language = JFactory::getLanguage();
$language->load('com_community');Replace both of those lines with:
SCStringUtilities::loadLanguage('com_community');Try that and let me know how it goes. If you're seeing those untranslated strings somewhere else, let me know that too and we'll gladly investigate more.
Thanks,
Alex