I've heard that they're changing the formulation based on problems associated with norephedrine availability (that or government restrictions possibly!?!).
In any event, there are still bottles floating around - but a new version will be on the shelves soon enough - whether or not it will be as effective as the original is an open question!
I bought some from netrition as well - but I think they stopped selling it....last time I was there - could be wrong....