First off, are you going to trust a Wiki article for your source? I love Wikipeadia and refer to it all the time, but got to be careful what you trust there. Have you seen the article about GW Bush's state funeral? Its quite nice, includes photos and everything! Appearently he died in 2001, not sure who's in the White House now.
That said, the Wiki entry lists lots of "shoulder fired missles," but the RPG is a shoulder fired missle too. There are three specific reports of SAM's being used. The CH-46 is the only one with a video reference. In the video we never see the launcher, we don't hear the pre launch "scream" the SA-7 makes, and we don't see the missle manuver, it flies straight (and I don't think its an accident that they used music to cover up the video's sound). Also, CH-46's carry active countermeasures which are highly effective against SA-7's. All of this leads me to believe it was a hell of an PRG shot, not a SAM.
The Brit chopper hit by an SA-14 is the only "official" SAM kill but again there is no video and its not a US bird.
The CH-47 shooting on November 2, 2003 is listed as a SA-7 shoot down, well follow the reference link and this is what is says:
witnesses reported seeing missile trails when the twin-engine CH-47 Chinook went down but that the official cause had not been determined....
if Sunday's helicopter crash turned out to be a shoot-down, it would be a new development.
Al Queda says they've shot down tons of our birds with MANPADS ("MAN Portable Antiaircraft Defence System" which includes all shoulder launched missles), and we see lots of videos of them shooting and missing (these guys video everything). I am certian that if they had shot down something with an SA-7 or 14 they would have released the video.
Of all the stuff you can find on the internet there is just one video of a Chechnian rebel shooting down a Russian transport which is absolutely an SA-7/14 shoot down. Watch this guy take his time and pass up several birds before shooting one. If I had to guess, I'd say that this man learned how to use an SA-7/14 in the USSR army.
It will happen, sooner or later they will get one, but my point to this whole thing is that MANPADS are not a magic bullet, they are difficult to use and require a skilled operator, that a lack of a warning tone does not mean instant death to PRM pilots.
BTW, iSmoke, love the sig!