Well I have fixed the item information however it required rewriting most of the insert query in the do='ipn' section. Actually so much of purchase.php has now been rewritten that it's hard to explain or do a copy and replace anymore, especially since I plan on capturing a lot more information.
But if anyone still has issues with it I may be able to help.
And lastly if ron1n and WhSox21 don't mind I may endeavor to post a script based on their works in the future.
If anyone is interested it is basically an art (or design) based script that involves ordering, viewing and troubleshooting art commissions. It will also tie into coppermine.
Of course if they are discouraging the promotion of edited works based on their code I will continue working in secret