Ta! That's what I thought. And the rest of the rebels believe it true and are thus not lying.

Did the Red Ajah really aid Logain and convince him to proclaim himself the Dragon Reborn. Or is this a blatant lie from Siuan (now that she can lie)? If they did, who were in on it? The prologue of ACoS makes it very clear that Elaida wasn't part of it.

Did Berelain and Rhuarc have some love thing going on with each other in Lord of Chaos?

no Rhuarc and Berelain kind of adopted each other, Amys even went as far as to give her the daughters kiss or whatever

I had the impression that Berelain tried her seducing skills on Rhuarc, but he (or someone else) nipped it in the bud pretty quickly and effectively. It never says it, but there's something in they're early dialog that seemed to hint at it. I don't have quotes.

Rhurac made it quite clear to her (possibly in a physical way) in the Stone of Tear that he wouldn't tolerate her flirting with him. It's mentioned in LoC - or at least alluded to.