If you have installed iStream but no links are showing make sure you also install all of the iStream services
These must be installed for the links to show.

Goto the .XunityTalk Repository then services and install the extensions
Goto the iSTREAM XBMC Addons Repository services install iStream Common and iStream United Kingdom

iStream Repo is missing. go to iSTREAM XBMC Addons video add ons iSTREAM is not there?
then goto file manager profile directory database and delete Addons16.db restart Kodi XBMC

This should fix all of your iStream issues.