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Thanks for responding back and letting us know the cause. It's helpful to know to ask about this the next time this question comes up -- and it has come up before (though I believe it was a different cause).

I think SEOmoz have disable the intial fast crawl and only the full crawl is available. I think it says the initial crawl can take 4 - 7 days (altho it has not taken this long in my experience) Email help@seomoz.org with your account details and ask them to look for you, they are really good at getting back