Latest V1.72 posted (thanks Kevin for the bug find)
The V1.71 upgrade to my spreadsheet was done by Matt.
I've tested it out and it looks good, so I'll not try to fix my own. It is now available at the download link on the right side of this blog.
And phew, good thing that London is out of play for now.
Sorry to all my fans, that i've been out of commission for so long..
I've been on a mousehunt, and had been busy putting together the mousehuntguide (shameless plug but it's my blog!)