Plugin is activatet, I'm loged in and I still can't comment or rate. I'm sure it's om my side, just need some help to figure it out. 1.4.3-BETA  (Official build) it didn't work on the regular version either, theme Version 1.4.3-BETA, 27. May 2012, rating and comment plugin activatet.
By the way I do like Zenpage, great tool.