NOPE NOPE NOPE!!!
Hahah...NEVER use linkedXForm for anything
To secure the ends of your rope, goto the modifier panel and click on the "+" side beside your reactorRope modifier. This will give you access to the rope spline-point sub-object. Select a point you want to secure (while in sub-object mode), then click on the button in the options that corresponds to what you want ("ie...attach to RigidBody") or whatever.
Hope that helps