About a week and a half ago version 4.1 stopped working for me, which IIRC it uses the "free" and uncapped Wunderground API, yet I have a web application that utilizes the same free API and that still works. What caused the old script to mess up?
I know you probably don't support it anymore, but I just don't want to have to deal with the hassle of Wunderground's capped API.