Didn't hear back from the email but I called them and the guy told me what I have now is the right stuff (it was sold through them on Amazon where I got it) and I likely had an older package before (but it lasts for up to 8 years. if it shows white crystals, that's the salt, just stir it up).
So he's going to send me some updated instructions (recommends 3tsp in my 500 gallon tub, beyond that he said it's being wasted and you can do it again if need be) and also a paper an independent guy wrote when he set out to disprove the Ahh-some claims but found out it actually works better than the other products out there. If anyone is interested in reading it, PM me and I can send it along when I get it.
thanks!