Try these
Threads
Code:
search.php?{session.sessionurl}do=finduser&userid={session.userid}&starteronly=1&contenttype=vBForum_Thread
Posts
Code:
search.php?{session.sessionurl}do=finduser&userid={session.userid}&contenttype=vB Forum_Post&showposts=1
--------------- Added 04 Sep 2018 at 13:19 ---------------
EDIT
These work for me, the above are wrong, sorry
Code:
search.php?do=finduser&userid=1&starteronly=1&contenttype=vBForum_Thread
Code:
search.php?do=finduser&userid=1&contenttype=vB%20Forum_Post&showposts=1