To read another thread, there a 2 ways. Either go to the forum list from the menu near the top of the page, then go to the right area (this thread is in 'Walk-Away-Spouse'). Look in that area for the title of that person's thread and go and read. Or...
Click on the persons name in red next to their post, a menu wuill drop down, click on 'view posts' and then you can see every post tht person has made. Click on any one of them and it will take you to that post.
To reply, use the little menu at the bottom of each post. If ther isn't one, it means that the thread is locked and no more posts can be made. There is usually another thread that follows on.
If in doubt, just click everything you can and roam around for a while, you never know, you might find something. lol.
I may not be a lot of use in helping others in here for a day or 2 so please excuse me. I will back full of beans before long though and I won't disappear.