From the BBC:
Bin Laden tape: Text
US officials say they believe the tape is real
The following is the full text of an audio message purported to be by al-Qaeda leader Osama Bin Laden, broadcast on Arab television station al-Jazeera on 11 February.
--Begin Text--
In the name of God, the merciful, the compassionate.
A message to our Muslim brothers in Iraq, may God's peace, mercy, and blessings be upon you.
O you who believe fear Allah, by doing all that He has ordered and by abstaining from all that He has forbidden as He should be feared.
Obey Him, be thankful to Him, and remember Him always, and die not except in a state of Islam [as Muslims] with complete submission to Allah.
We are following up with great interest and extreme concern the crusaders' preparations for war to occupy a former capital of Islam, loot Muslims' wealth, and install an agent government, which would be a satellite for its masters in Washington and Tel Aviv, just like all the other treasonous and agent Arab governments.
This would be in preparation for establishing the Greater Israel.
Allah is sufficient for us and He is the best disposer of affairs.
'Unjust war'
Amid this unjust war, the war of infidels and debauchees led by America along with its allies and agents, we would like to stress a number of important values:
First, showing good intentions. This means fighting should be for the sake of the one God.
It should not be for championing ethnic groups, or for championing the non-Islamic regimes in all Arab countries, including Iraq.
God Almighty says: "Those who believe fight in the cause of Allah, and those who reject faith fight in the cause of evil."
So fight ye against the friends of Satan: feeble indeed is the cunning of Satan.
Second, we remind that victory comes only from God and all we have to do is prepare and motivate for jihad.
God Almighty says: "Oh ye who believe! If ye will help the cause of Allah, He will help you and plant your feet firmly."
We must rush to seek God Almighty's forgiveness from sins, particularly the grave sins.
Prophet Muhammad, God's peace be upon him, said: "Avoid the seven grave sins; polytheism, sorcery, killing, unless permitted by God, usury, taking the money of orphans, fleeing from combat, and slandering innocent faithful women."
Also, all grave sins, such as consuming alcohol, committing adultery, disobeying parents, and committing perjury. We must obey God in general, and should in particular mention the name of God more before combat.
'Media machine'
Abu-al-Darda, may God be pleased with him, said: "Perform a good deed before an attack, because you are fighting with your deeds."
Third, we realized from our defence and fighting against the American enemy that, in combat, they mainly depend on psychological warfare.
This is in light of the huge media machine they have.
They also depend on massive air strikes so as to conceal their most prominent point of weakness, which is the fear, cowardliness, and the absence of combat spirit among US soldiers.
Those soldiers are completely convinced of the injustice and lying of their government.
They also lack a fair cause to defend. They only fight for capitalists, usury takers, and the merchants of arms and oil, including the gang of crime at the White House.
This is in addition to crusader and personal grudges by Bush the father.
Trench warfare
We also realized that one of the most effective and available methods of rendering the air force of the crusader enemy ineffective is by setting up roofed and disguised trenches in large numbers.
I had referred to that in a previous statement during the Tora Bora battle last year.
In that great battle, faith triumphed over all the materialistic forces of the people of evil, for principles were adhered to, thanks to God Almighty.
I will narrate to you part of that great battle, to show how cowardly they are on the one hand, and how effective trenches are in exhausting them on the other.
We were about 300 mujahideen [Islamic militants].We dug 100 trenches that were spread in an area that does not exceed one square mile, one trench for every three brothers, so as to avoid the huge human losses resulting from the bombardment.
Since the first hour of the US campaign on 20 Rajab 1422, corresponding to 7 October 2001, our centres were exposed to a concentrated bombardment.
And this bombardment continued until mid-Ramadan.
On 17 Ramadan, a very fierce bombardment began, particularly after the US command was certain that some of al-Qaeda leaders were still in Tora Bora, including the humble servant to God [referring to himself] and the brother mujahid Dr Ayman al-Zawahiri.
The bombardment was round-the-clock and the warplanes continued to fly over us day and night.
War in Afghanistan
The US Pentagon, together with its allies, worked full time on blowing up and destroying this small spot, as well as on removing it entirely.
Planes poured their lava on us, particularly after accomplishing their main missions in Afghanistan.
The US forces attacked us with smart bombs, bombs that weigh thousands of pounds, cluster bombs, and bunker busters.
Bombers, like the B-52, used to fly over head for more than two hours and drop between 20 to 30 bombs at a time.
The modified C-130 aircraft kept carpet-bombing us at night, using modern types of bombs.
The US forces dared not break into our positions, despite the unprecedented massive bombing and terrible propaganda targeting this completely besieged small area.
This is in addition to the forces of hypocrites, whom they prodded to fight us for 15 days non-stop.
Every time the latter attacked us, we forced them out of our area carrying their dead and wounded.
--Text Continues Below--
Here we go again. 
