There are some tools already available to you. To see new posts, click on the "New Posts" link
. The system will show threads that have posts that you have not seen. When you open a thread, you can click on the "View First Unread" link
. That will take you to the first post of that thread that you have not read. If there are forums you do not care to see, such as those of a different manufacturer, you can go to that forum, and click the forum tools, then click ignore forum.
Then you will not see that forum in your display. You can ignore threads the same way. When you have finished viewing posts, go to the forum list page, and down at the bottom is a link to "Mark Forums Read", that will cut down on the number of new posts you see when you next visit the site.