Hmm.. I'll pretend that post didn't make me blind for three minutes.
The switches have nothing to do with this, really. All you needed them to is to open the doors and\or obtain treasuers... Though I'm not sure if there was any treasure that wasn't next to the switches needed to progress to the Spiked hallway. Anyway, you're supposed to use your head to get through the hallway and simply manuver Rhue across.
I actually got a bit strandad there myself... One sulotion stems from the
The Way Walkthrough. Another one, if you're painfully stuck here, is to set up a teleport (Where you can find one, of course!) right BEYOND the end of the spikes, but NOT in the next room, as it may mess up the following scene. To set up a teleport you will require RPG Maker 2K\2K3.