Ivan, first of all... the "9/11 was an inside job" thing is a myth. There is some evidence that the Bush Administration ignored warnings of Osama bin Ladin's threats... but it is clear that 9/11 was perpetrated by Islamic extremists.
The president sets the story strait:

If that's not enough for you try this:
This site [Daylight Atheism] holds a page devoted to debunking the "Loose Change 9/11 conspiracy theory."
http://www.daylightatheism.org/2006/05/loose-marbles-i.html
Please keep in mind! I checked your profile and you said that you are an atheist! It is the job of an atheist to correct our misconceptions! Please! Don't act like a theist and completely ignore or dismiss the evidence against your belief!

Second:
The various conspiracy theories surrounding 9/11 are irrellevant to the message of this video! Even IF the conspiracy were true, that wouldn't change the fact that several thousand innocent lives were lost that day! This is a memorial for them [and others] not a debate forum on 9/11 conspiracy theories.
Thank you.

which internet browser are you using? Firefox has a built in spell check feature that you can use.