watch in the Marketplace support forum  overviev of threads in the right upper corner of the forums table... there is an sentence which is clickable saying sort by last reply... click on that and it will be sorted by last reply and not by threads

 

there are collums with

                                                                                  sort by last reply 2 pages :: 1 | 2

ThreadsAuthorPostsViewsLast Reply you must click sort by last reply thats it