[@nuprn1 Participant 15 years, 5 months ago]

you can call out the loop bp_has_forum_topics('no_stickies=no&type=newest&page=false&max=5')

have a look at the default/groups/single/forum/topic.php for an example

or if you use the group forum extras plugin – i have a widget for latest topics bundled in the index subplugin