Aaron's Quick Process Calculation

I noticed the "Aaron's Quick Process Calculations" Featured Link in the www.ptc.com Mathcad Resource Center page, but this site appears to have been abandoned. Actually, if I remember correctly, I tried to purchase these Mathcad files approx 2-3 years ago and it was inactive at that time. Maybe Mona can followup on this. But I was actually wondering if anybody did purchase these files, and they are no longer used/needed, if I could purchase them from you. Or, can somebody direct me to where I can purchase them?

thanks,
fred