Here's a slew of links to related resources at the USMA Combating Terrorism Center:

Al Qa'ida in Iraq SitRep: Arabic English

Instructions to Abu-Usamah: Arabic English

Security Report from Abu Azzam: Arabic English

Al-Qa`ida in Iraq Hampered by Bureaucracy and Loss of Sunni Support, 20 Apr 06

Abu Ayyub al Masri/Abu Hamzah al Muhajir: The Challenge of Leadership, 14 Jun 06

...and, for those who aren't already aware of the site, here's the FMSO OIF Document Portal