"This is annoying. I went to where you directed me, changed the password, and then tried to login to stats, and IT WON'T LET ME! I'll be here banging my head against the table."
You will probably have to wait 10-15 minutes before the pasword "takes"... annoying, but that is the way DreamHost works. I think they have the various administrative tasks set on a cron-schedule, so your passwords won't be updated until that cron-task is run... every 10-15 minutes or so.
Check again in 20 minutes or so, and you should be able to get in.