If you don't get any tDRK payments you are probably on a fork. That happens to me several times per day.I noticed a couple of commits from 8-9 hours ago in dstorm's repo, so I cloned the source again and compiled it.
Now I don't get the error messages from my earlier posts, however the p2pool node in testnet reports ridiculous amount of blocks found and I get no tDRK payments.
Here's a link: http://drk.kopame.com:18998/static/
EDIT: There are also no connections in or out of the p2pool node, only one cpu miner is connected and the darkcoind seems to show the correct block count.
On mainnet you will only see "Testing bitcoind P2P connection to '127.0.0.1:9999'..." until the hardfork because it doesn't support both protocol versions.