$25 beer if you can solve this php, ipn issue

Hey guys,

I'm using a 3rd party php script to automate dvd delivery through kunaki.com.

The script was designed to handle one time payments through paypal, but I'm looking to offer a subscription payment model also.

My php coding skills are minimal though I have managed to modify the script to insert the subscription payment button code, but I've run into a problem with the IPN check.

The IPN file in the script looks for the full sales amount before passing the order through to Kunaki.

All I need is someone who knows PHP who can take a quick look and make the relevant changes to the IPN settings so that it approves the order when the first subscription payment has been made (but still disapproves failed payments etc)

If you think you can do this, PM me and I can send you the script to look over. I really think it's probably only a small thing, and anyone who knows php should have no problems.

Thanks!

Richard