Sherry,
Here is the way that I do it:
I go to my main Sound Click page and it shows all the songs in a box below.
Then I choose the song I want to post and push the "Full" button next to the song.
This bring up the song with the option to listen to it Hi Fi or Low Fi.
Then I go up to the up to the URL or internet address at the top of your brouser and I highlight it.
Then I press the CTRL button and then the C button (hold CTRL down and then press the C button and this copies that address.

Then When you post your song you position you cursor where you want the song link to be on your tread and you press CTRL V (Hold CTRL button down then press V) This pastes the address on your thread.

Boy, I am sure there is a clearer way to explain it but I hope that made sense.

Tom