PayPal IPN

[Light]

Hi,
I have been trying to implement PayPal's IPN service in my site that uses PHP. I have used several versions of the script and tried to test it with EliteWeaver but it keeps returning the result as INVALID. What could be causing the response to be INVALID?
Thanks for any help.
Cindy

[jayc]

At the top of the EliteWeaver script there is an option of whether you're using the EliteWeaver test script for testing or PayPal. Do you have this set correctly?