Ok, try this: In the Prefs.ahk you add WillHill in the following line:
pixelCasinos=Stars|Absolute|Pacific|WillHill
This should get WillHill as an alternative in the preference gui. But when you setup the color pixel, dont use the fold button, use the Raise button.
And download this again:
http://www.overcards.com/wiki/moin.c...igatorWillHill
This worked for me at least, good luck.