How to get the mouse working with Ubuntu 7.04 under Virtual PC

I know a lot of people have been trying to get Ubuntu 7.04 working under Virtual PC - and have been hitting the problem that the mouse does not work.  Well - details of how to get the mouse working have now been posted here:

https://arcanecode.wordpress.com/2007/05/17/fixing-ubuntu-704-fiesty-fawn-mouse-under-virtual-pc-2007/

Have fun!

Cheers,
Ben