SP3: FCK: Internal Link module: How do I switch to another language in order to make a cross-link in another lang

How could we switch to another language in the FCK linked module if you want to make a link in another lang. For the moment the other lang is displayed as being "N/A" (without even its pid so dfficult to guess when a full section is not translated which page is really which one...)... So perhaps better to be able to swith to another lang and to reload the sitemap at the current position?