**URGENT** VPAID implementation in AS3

Hi,
I have been reading through the documentation on OVA for over a week now and I can't find an explanation of how to implement VPAID correctly.
In one documentation (http://www.iab.net/media/file/VPAIDFINAL51109.pdf), it says that the first method to be called is handshakeVersion(string). And that it should be called after loading the ad. But how do you load the ad? There must be a function for it.

When I was looking at the source code, I noticed that in ova.as3/src/org/openvideoads/vast/overlay/VPAIDWrapper.as the constructor looks like this:
public function VPAIDWrapper(ad:*, muteOnStartup:Boolean=false, playerVolumeOnStartup:Number=-1) {...}

What is ad:* supposed to be? Is it a json object? What values/parameters should it contain. Is this how the ad is loaded before calling handshakeVersion?

Please help!!!
I've exhausted all options.

Thank you,
Shalev

ps: I can't find any good tutorial out there on how to implement VPAID in as3