Although not exactly what you are asking for, there are 2 buttons on the forum page that lists the topics that may be help your navigation:
- Just to the left of the topic is a blue circle with 2 white upside down triangles. If you have already viewed the thread then this button takes you to the first unread post in the thread, which should be where you left off previously.
. - There is also a blue rectangle with 2 white sideways triangles in the far right column after the name and time of the last post of each thread. This button takes you to the last post in the thread, which will also be the last page.