Quota Editor
User	Space Used	Quota
demo1.com [demo1]	0 meg	meg
demo2.com [demo2]	0 meg	meg
demo3.com [demo3]	0 meg	meg

If all your quotas are listed as 0 used and this is incorrect; Please consider running /scripts/fixquotas. [Your (a)quota.user files are probably corrupt]!