Another problem with dating lava rocks is that they can start to solifiy inside the volcano. IF it is near the surface or in a cool spot in the volcano, it can solidify then and the force of the eruption can bring it up. Also the volcano can be bringing up pieces of cone from a previous eruption. So a very old age for the eruption is possible. Than again one thing i noticed is that they mentioned that the rocks came from hawaii. unless i am mistaken hawaii is on a hot spot and is onlt a few (tens?) million years old, not the billions they say.

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GIYUL :-)
"It takes Thousands to fight a battle for a mile, Millions to hold an election for a nation, but it only takes One to change the world." - Dan Sandler 2002