I don't know anything about blocking... but as far as washing it, I bought some Wool Wash from Wooly Rascals (http://hyenacart.com/WoollyRascals
) and plan on washing my Kureyon stuff with that.
It's to be used by hand, like in a sink full of tepid water, but I was already prepared for that when I bought the Kureyon.
Monkey Sudz also sells some wool wash cheap : http://www.monkeysudz.com
You can also wash wool using baby shampoo, I know for sure. If you do it by hand in the sink and don't agitate the wool any while it's wet, it shouldn't be a problem.
Hope this helps, I'm curious to hear how others wash their Kureyon as well.