I'm testing it.
Added line 186 on index.php:
'COST' => $ticket_cost
Now there is the dynamic cost to the waiting.html
XAMPP 1.7.4 for Windows ( windows 7 x64 )
It seems that there is a bug. ( I'll check it later ... )
I counted 20 times just one entry ( so it collected 20 entries even if I sent only one time a single bitcoin )
EDIT:
Ok, It's working perfectly, my mistake
Thank you for sharing this, it's really useful!