Hello.
I have upload to my website the file of the BBC pc theremin, and I must add is much better than mousing.
http://www.jonas.com.mx/downloads/pc_theremin.exe
But as i'm running WinXP and shockwave 10, it requests me to download shockwave 8, so after many many searchs i've found it. So I'm running it again as I did 5 years ago.
Here's the link for shockwave 8, install fhe full version:
http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_18629
Enjoy.