My blog is crippling under the weight of spam comments - 149,453 comments to be exact. That's more than an average of 180 comments per entry. The large majority of the comments are spam, and I've no idea how to get rid of them.

I'm looking to transfer my site over to Typepad. But as things currently stand, the Export text file is too large for Typepad's Import mechanism to handle, due to the spam comments.

Is there any way to easily delete all comments from my blog? I don't really care about salvaging any of them. It's just causing so many problems. Please e-mail me if you have any advice.

P.S. I am not interested in learning about spam filters, etc. I simply want a method for the wholesale deletion of comments from Movable Type. Thanks!