As requested Gents.
For this brief lesson we'll use Simon's Link OK?
So this is the link as copied and pasted from youtube http://www.youtube.com/watch?v=GHJYiuZkRXw&feature=player_embedded
Step 1. Delete watch?
Step 2. Delete the = after the v and substitute that with a / so you'd see this http://www.youtube.com/v/GHJYiuZkRXw&feature=player_embedded
Step 3. Highlight that and then hit the Button under B
for Bold that looks like a kaleidoscope which will then show like this............... http://youtube link modified as per instructions
And there you have it. Post as normal.