I would really like use on my forum. Problem is that I have absolutely no idea where to place it!

Can somebody please tell me how to locate the script, and where to insert in that script....if that's what I need to do that is?
I am also running the latest version of VB, so I presume that I will need to get the latest download, but where from?
Maybe someone could help me out and insert it for me? I could copy the correct script from my board and someone if they were kind enough...could insert what I need in to the right place?
Thanks in advance