You can read through my posts on the poll being rigged for both Cian and Zoe here
http://www.thisisbigbrother.com/foru...=350917&page=2
It's worth noting that on the BB Spy poll, which opened around the same time that the rigging began Cian and Zoe shot straight up to #1 and #2.
I don't doubt that Cian is growing in popularity though. I could definitely see him coming 2nd. But he was on about 12% of the vote on Tellymix before the rigging began.