How not to get lost on this site, and find the posts that you have not read....
When you log into the site if you want to find all new posts since you visited last. Click on "New Posts" in the Navigation Bar at the top of the site shown in teh screen shot below.
The page that loads next will have any new threads or posts that you have not read in BOLD TEXT as in the screen shot below.
For example in the screen shot above. Look at "The Name Game!" thread. I have read that thread many times, but since my last visit here someone has made another post that I have not read since the thread title is in BOLD TEXT for me.
How do I get to where I left off reading? Or how do I get to the first post in that thread that I have not read? Look at the small red images with a white arrow in them. Click on one of them and you will be taken to the first unread post by you.
This helps out so much so you do not have to go through each page and try to figure out what you have read or not read.
I hope this helps you navigate around the site much better.