MD11 tail plane questions

[Airbusboy]

Hello a few questions about the MD11,

1. Where is the yaw damper on the MD11 exactly located?
2. What and how does the dual rudder work?
3. Does the MD11 have trim tabs on the rudder?

Does any one have a detailed empennage drawing of the MD11(maintenance/ops manuals). I've checked Boeing's technical section, but it was just general schematics. If any one could kindly send me a picture if they have access to it.

Any info appreciated

Thanks