Hi,
I have tried a couple of free submission software ( they are limited but if you like them the cost is affordable) and they are working for me so check them out and see what you think:
http://www.webposition.com
http://submitnet.net
And please visit Traffic Swarm and get you URL out there itīs effective and itīs FREE:
http://www.trafficswarm.com/go.cgi?181229
Good Luck!