How do I torque the fuel pipes afer I put them back on? 
  I think most of us just do them "snug" with a wrench.  I usually use an 
open end wrench.  It takes away a lot of the temptation to reef on them!
Test for power at your glow plugs.  It could just be the fuse or the screws 
that hold it in.  Possibly the relay also.
     Loren