Either you create a new account and create a new rig there or I already set you one up here: http://rig.rent/rigs/30896
To get it to run at all you can use this config:
POOL: eu-01.miningrigrentals.com:3344, WALLET: Gigadroid.30896, WORKER: Gigadroid.30896, ALLPOOLS: 1, ALLCOINS: 1
Ok, I've created the following config.txt:
-epool eu-01.miningrigrentals.com:3344
-ewal Gigadroid.30896
-eworker Gigadroid.30896
-allpools 1
-epsw x
It works and miner sends shares, pool accepts them.