Is there anything special you have to do the the Mybook to make them work??
No, if it was gonna work, it would have according to what you have posted. All eSATAs use the same short procedure for activation. Unplug both the eSATA and the HR, plug in the jumper cable to both, then plug in the eSATA and then plug in the HR. Simple. If you followed that procedure and the My Book doesn't work, return it.