Your forum account is currently linked to hosting account thibaud.Sometimes it may have taken time to get linked.So can you try again to get to Cpanel.If not post back.
Your account is currently unsuspended. So you should be able to login to Cpanel.password doesnt change if you get suspended.
Login to account panel and try changing your password.
Can you try to link you account .Refer this to link it http://x10hosting.com/forums/free-hosting/114005-important-information-must-read-before-posting.html#post649293
If not post back here i will escalate it to staff
seems like some problem ,because your webpage is loading. Can you login to account panel http://x10hosting.com/control and try to unsuspend yourself. If not post back here i will escalate this to staff