The cliff notes is: you take the password (note that the rocks part is spelt without a c and with a z as "rokz"), and stick it into the admin field under preferences. (Translation for Canadian readers: "cliff notes" == "Cole's Notes")
Apologies if any of you have tried to edit the site since September 8, 2010. Apparently, the UseMod? developers thought it would be wise to use a hard-coded expiry date on the cookie they send. I've pushed the reoccurrance of this problem forward a few years by changing the hardcoded date to 2012,