I have a pair of posts at The Democratic Daily on what was known about WMD. The second uses more recent informatin as to what was known at the time to explain Kerry's position on the war, show that Kerry and Dean had essentially the same information, and to attempt to reframe this as Democrats were right, Republicans (as opposed to the civil war between Democrats over this).
The posts are in GD at:
http://blog.thedemocraticdaily.com/?p=2272The original posts (with multiple links) are at:
http://blog.thedemocraticdaily.com/?p=2271and
http://blog.thedemocraticdaily.com/?p=2272