Never opened Old Arista liquid C-41 1qrt kit?

Got this well over a year ago.. don't remember when, and wondered what the shelf life of this might be?

Background: Want to try my hand again at doing some color developing. I was going to use it last year, but understand that there was evidently a problem with one of its components, and the Arista color chemicals where taken off the market for a while.
Does this ring a bell with anyone?

Got my Arista C-41 kit in October 2010. I used it last week and everything seemed ok. They last a long time.

By gosh a reply... ;-)
thank you... looked it up, got it in Aug 2012.. going to do some test strips.. the color of the liquid has not changed... will find out... but you give me confidence in trying it ... thanks