When you said you had no bans, I am going to assume you meant at least 6 bans. Please explain these bans in detail and when they occurred.
[0] => play.etherzcraft.co.uk .:. Fly/Speed Hack
[1] => cheesecraft.dyndns.org .:. Griefing confirmed by BB/

[2] => mc.cactuscraft.com .:. griefing
[3] => 71.202.125.200 .:. greifing proved by bigbrother
[4] => 72.5.86.36:25565 .:. Has not followed rules.
[username] => dpx666
[issuer] => chumazing
[server] => c.nerd.nu
[reason] => torch griefing on S and denying it; appeal at nerd.nu/appeal
[time] => 2011-07-21 09:30:21