I have installed The tracker2 module, and where it says "Last Post By" in the tracker, I'd like to add a linebreak at the end of the time stamp, followed by the name (with link to the user's profile) of the person who did that last post.

I see that this appears to be the line in the code (at line 352):

t('!time ago', array('!time' => format_interval(time() - $node->last_activity)))

that would be the place to put it, however, I do not know how to get the name of the user who did the last post in that thread. Can anyone help?

TIA