Since I missed out on the Kellogg's promotion (and wasn't into Zumba back then) I purchased mine on e-bay about 2-3 months ago.
Mine has a 20 minute workout with Jenny, and then a 10 minute workout that the kids do at the end of the video. I've only done it once, and can't remember if it's the first or second workout.
I think there was another one that was blue, if I'm remembering correctly.
Did you try posting on the Ya-ya's swap?
I'd still try searching on e-bay as you never know what you might turn up. I would have preferred the DVD version.
Good luck with your search!