Thanks for the reply, but still dead ended. Either of these routes takes me to the Cart Checkout, where none of the payment buttons responds. Really need this extension, and had no notion this was coming. Feeling pretty frustrated here...

This may be perfectly obvious to someone who's more savvy about these things than I, but how does one purchase a license? An often used extension is suddenly unavailable and I can't find the place/process for the life of me...