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Dugger - 3:45 pm on Jan 14, 2004 (gmt 0)
Since it generally takes months for Google to recognize new links and then months more to act on spam reports I don't think enough time has gone by for your PR0 to be the result of the blog spamming. In any event you have done something else wrong by the looks of things - and there is no quicker fix than trashing your domain and getting a new one I am sorry to say.
I would say your PR0 is likely not a result of the blog spamming but something else. Many sites rank very well in Google and seem to have got that way because of blog spamming. There seems to be no filter for this but if enough people report the spam that some sleepy tech at Google sits up and takes note and manually penalizes the site - then your domain is toast - get a new one.