Quantum Gateway has their own CRE Loaded drop In module which is PCI Compliant!
You can find the module at this link
http://www.quantumgateway.com/CREloaded.phpand more info on their Gateway and Merchant service at the following post in this thread!
Just check out the last post in the thread!!
http://creloaded.org/forum/topic.html?f=82&t=27132&hilit=quantum+gatewayCode:
To Whom It May Concern:
All requirements in the Report on Compliance are marked in place; thereby Quantum
Services has demonstrated full compliance with the Payment Card Industry Data Security
Standard version 1.2.
Sincerely,
Anthony S. Gathye, CISSP, CISA, QSA
Information Security Specialist