OK I found out the details .
all the donations go through paypal and when the target amount for the raffle is reached everyone will recieve their numbers on email from paypal.
One number will be issued for each 10 dollar donation and then when a winning number is drawn , the number will be posted on the Helping Young Hunters Homepage and then if you winn , you contact them and they put you in touch with Voodoo bows to claim your prize