I have noticed several people saying in the forums they don't know how to post a link. I am not sure what it is they don't know how to do but I am going to try to explain it. I think it is the fact people don't know how to copy a link.
I don't think this forum has the capability to do permalinks http://en.wikipedia.org/wiki/Permalink if it does I haven't figured it out yet. IOW you can only link to the ENTIRE thread....not a post WITHIN the thread. This can be annoying as you may have to read the entire thread to find out what the poster is referring to. But you work with what you got. :)
First you have to search for the thread you need using key words or tags they are called. Then you cut(copy)and paste the address into your post. That is it.
Here is how to cut and paste...Put your cursor at the beginning of the text/link you want to copy. Hold the left mouse down and highlight the entire text. Release the mouse. Hold the Ctrl + C at the same time. Then, go to the area you want to copy the text/link ....Hold the the Crtl key +V at the same time. The text/link should appear in that area.
As always, there is another way. Highlight the text/link. Right click on it; select "Copy" or "Cut"(Cut will remove it totally so I usually use Copy). Then go to where you want to add the text or link and right click once again and select "Paste" and it appears in your new post.
I hope this explains it clearly enough.