Can't work crowdflower/figure eight task?

Can't work crowdflower/figure eight task from superreward channel,when i click it "not found" message.i also tried persona.ly but i there is no more task option in persona.ly.so where should i work crowdflower/figure eight task?where can i work crowdflower task in heedyou?where??

i already asked crwodflower admin about superreward and they tell me to work from other channel ,so where is the other channel?where?