This is strange, I am going thru the same thing myself… making our proprietary ERP system PCI compliant. I’ll share what I have for you so far.
Here is a website that was provided to merchants late last year regarding PCI compliance. It is a survey to determine if your business is PCI compliant and also offers a link to the services of Trustwave which is a company you pay to make sure your company is PCI compliant. They will do testing on your systems and investigate your internal operations to be sure the paperwork you keep on hand is secure.
Here’s also a Q&A I found on PCI compliance on the internet as well. Just in case you want to check it out as well.
In addition, there is some encryption software that is available thru a company called Patrick Townsend. My contact is a woman named Sharon. I havent called her yet, but will in the very near future, if we work together, we might get a bundle deal to save some money. Contact information is below:
Patrick Townsend & Assoc.
P.S. Let me know if you want to discuss direct, I am willing to share my experiences as I go thru this process.