yeah, the BBC "cock-up" is really a big smoking gun for the 9-11 truth movement and clearly affirms that someone who had foreknowledge of the collapse of WTC7 must have tipped the british coproration.
Other interesting pieces of evidence for complicity are:
1. Norman Mineta's testimony in front of the commission, where he claims that Cheney intentionally failed to prevent the crash on the pentagon
http://www.youtube.com/watch?v=bDfdOwt2v3Y
2.William Rodriguez, the last man who left the towers, claims he heard explosions:
http://youtube.com/watch?v=BEYRtIYq8KQ
3. FBI foreknowledge (as Kristin Breitweiser concluded from confronting the FBI)
http://youtube.com/watch?v=rwVbNjJ_tyo
And there there is the famous "pull it" quote by Silverstein,etc,etc... and this is only a small fraction of the evidence towards complicity and foreknowledge.
The truth movement is growing:
Military, Intelligence, Law Enforcement, and Government Officials:
http://patriotsquestion911.com/
Professors
http://patriotsquestion911.com/professors.html
Survivors, firefighters, victims families, NYPDs:
http://patriotsquestion911.com/survivors.html