Just because the war on terrorism was DECLARED after 11 September 2001 does not mean that every action taken thereafter will be directed against a target directly related to the attacks of 11 September 2001. To think that would be prettythanginine.
Much like 7 December 1941 was the immediate cause for the entry of the U.S. into the war, 11 September 2001 was the immediate cause for declaring war on terrorism.
Just like the invasion of Sicily was not undertaken because Sicily had a direct link to Japan and 7 December 1941 but rather because a stated enemy of the Allies was there, the invasion of Iraq was not necessarily undertaken because Iraq had an absolute direct link to Al Queada and 11 September 2001.
War was declared on ALL terrorism after 11 September 2001, not just on Al Queada.
Still, these links should tell you why Iraq was a a target in the war on terror, and in fact likely the target that needed to go after the Taliban.
http://www.hudson.org/files/publications/murdocksaddamarticle.pdfhttp://www.hudson.org/index.cfm?fuseaction=publication_details&id=3333http://www.weeklystandard.com/Content/Public/Articles/000/000/004/152lndzv.aspEach article shows direct links between the regime of Saddam Hussien in Iraq and known terrorists. Saddam was guilty of harboring terrorists, training terrorists, protecting terrorists, and financing terrorists. There is evidence that points to links between Saddam's regime and those who committed the attacks of 11 September 2001. Regardless of that, Saddam was guilty of being everything the free world will not tolerate.
Of course, if you don't want to read them, or believe them, that's just fine. But unless you can discredit them don't expect me to bother with you further.