1. Create account.
2. Download a miner.
3. Configure your miner.
If you're using Linux, Then type the following into the console:
./sgminer -k darkcoin -o stratum+tcp://drk.cryptoadhd.com:3344 -u Weblogin.Worker -p Worker password
You then need to change "-u Weblogin.Worker -p Worker password" to reflect your own account. Eg, "-u Steve.StevesWorker -p StevesWorkerPassword" If you want, you can create additional workers with usernames and passwords of your choice here
4. Create a Darkcoin address to receive payments.
Generate a new address and input it on your account page to receive payments.