Here's one that seems to be missing - From http://www.signonsandiego.com/uniontrib/20060604/news_1n4canada.html
"It was not clear whether the group ever had possession of the chemicals. When a police spokeswoman, Cpl. Michele Paradis, was asked whether the group had the three tons of chemicals in their possession and if the police had “seized” it, she replied: “That's difficult to answer. They made arrangements to have it delivered and they took delivery.”
Good catch. That much fertilizer takes up a fair amount of space and the mixing process requires a larger area of operations in order to bring the fuel and fert together for mixing. Perhaps the bags or bulk of fert were delivered to a farm or large storage facility. I'm wondering if some transportation arrangements were made that could have allowed explosives to enter the USA and be 'trucked' to parts unknown!
More on the fertilizer ... but just where it was found and how it got there is still not revealed: http://www.freerepublic.com/focus/f-news/1643116/posts