Can someone help me understand what I am doing wrong and how to fix it? Teach me to fish and I will not ask for a meal again!

Thanks!
wafurniture
__________________________________________________________
-------- Original Message --------
Subject: PayPal IPN Invalid Process
From: customerservice@woodlandamishfurnitureofohio.com
Date: Tue, June 03, 2008 10:46 pm
To: customerservice@woodlandamishfurnitureofohio.com
$HTTP_POST_VARS:
mc_gross=90.95
invoice=3
address_status=confirmed
payer_id=P3VFCAEAN7R46
tax=5.95
address_street=1180 luminary circle unit 104
payment_date=18:11:14 Jun 02, 2008 PDT
payment_status=Completed
charset=windows-1252
address_zip=32901
first_name=steve
mc_fee=2.94
address_country_code=US
address_name=steve lavoie
notify_version=2.4
custom=3
payer_status=unverified
business=customerservice@woodlandamishfurnitureofohio.com
address_country=United States
address_city=melbourne
quantity=1
verify_sign=AqBqA1nSf.CEBj1d5rbDP.LO-woKAb1EbjfOb7Oal7tMVyW2n6IFsyP9
payer_email=halxxxxxx@yahoo.com
txn_id=0NR54268LX989223Y
payment_type=instant
last_name=larrie
address_state=FL
receiver_email=customerservice@woodlandamishfurnitureofohio.com
payment_fee=2.94
receiver_id=G8TPXXXQ6MWMJ
txn_type=web_accept
item_name=Woodland Amish Furniture of Ohio
mc_currency=USD
item_number=
residence_country=US
receipt_id=3936-1281-XXXX-8729
payment_gross=90.95
shipping=0.00
$HTTP_GET_VARS:
