That is actually the website for Aquastrophics. For lots and lots of reasons, everybody here will strongly suggest NOT using them.
I also stand behind those saying to retake the entire OW course. A "refresher" or "resort course" after 25 plus years is not going to do the job. Your profile suggests that you might not have done much since you were certified either.
+1 - the following has been reprinted periodically, meaning there are still peeps being suckered by this guy:
From the PADI Undersea Journal Third Quarter 2013 : "Please note that neither David Holt, Aquastrophics, SDA (Scuba Divers of America) nor OnlineScubaLessons.com have been PADI Members at any time. Please also note that the academic program offered by these three entities is not valid for PADI Open Water Diver referrals nor certification."
Don't waste your money on this scam. Sign your wife up for an OW course through your LDS and have her re-certified from the beginning. Her safety is too important to leave to chance.