I've been mining for over 24hrs since my last withdraw and none of my paid shares have counted towards my BTC balance. Is everything functioning correctly? I'd hate to think my hashrate has been (mostly) going to waste.
BTC increases when a block is found. Note the 'Round Duration' on your page. It's over 24 hours. That's why you haven't had an increase - no blocks have been found in that 24 hours.