I was wondering. Would it be possible that for now viewing new posts, only have the new posts on each thread shown instead of having all the post shown and going to the end just to see the new posts.

If this feature already exists, please tell me how to use it!
Thanks!

something along the lines of all the old posts not showing in the thread or being collapsed where you could have the option to expand them?

This is exactly what I mean.
THis way when it says "There have been 720 threads and 1663 posts since your last visit!" I will only see those items that are new. Is this possible?

not totally sure we are on the same page yet... the view new posts shows you the new threads/posts since your last visit. Are you talking about if you go into one of those new threads that all the old posts from your last visit within that thread would be collapsed?

Yes,
A better way to look at it may be that when you go into a thread, you see the words new post on a yellow background on just those messages that are new since the last visit. I would like only those displayed and not all the previous posts.