The Dink Network

Well i have worked on a d-mod for a long time
and i have a problem.
Dink should talk to a Wizard and then the wizard send him to kill the pillbug
and here are the problem. I have set the pillbug on vision 1
and then i have maked this script to make the
vision get to 1 from 0

void main( void )
{
if (&story < 2)
{
&vision = 0;
}

if (&story == 2)
{
&vision = 1;
}
}

But why doesn`t the pillbug show up