After you queued my account, I got the same error message again (DNS entry already exists). So, I tried creating my account again with the same domain name. I am waiting till now (4 days) but my account is still in the creation queue. It keeps showing me different dates when I check for the status of my account in the creation queue. Look:
http://www.heliohost.org/scripts/status.php?username=harish
It shows a different date after every 48 hours and I am still not able to access my account. Please help!