Hooked 'er all up, and it's not working. Argh!

Here's my config.ini where it matters:

[hijack]
khttpd_root_index=/drive0/opt/khttpd/charcoalgray99/index.html
fan_control=1
fan_low=25
fan_high=55

The High Temp Warning is reading:

Curently: +32C/+89F

and my little fan ain't whirling. I'ce checked that I'm getting 12v to the controller board and the wires are where they should be. . . any ideas? Am I not understanding how the hijack settings work? Mark, could you explain them in more detail? Thanks!!!