The Yeti V.I.B. 250 bag is still available at www.globetrotter.de , even in a new 2007 version. Website is in german language only. Contact me if you need help.
I once had this bag, it's very flimsy, and a Nunatak Arc Edge keeps you warmer.
I'd suggest either a Nunatak Arc Ghost or Arc Alpinist, depending on the temps you're gonna encounter.