If you go to where you pay for lj stuff (paid accounts, t-shirts, etc.), one of the options is to buy a "rename token" for $15. Once you've bought it, they send you an email with a link to the page you need to use to select your new name, and then their script does it for you. Not only will your journal name change, but when people try to lj-cut to your old username, it'll always register as your new one. In fact, I think OLD references to your OLD username will then display as your new username instead.
The really nice thing is that the script I'm using to put my friends list into e-mail still works using the old name, too, and it still puts the old name in the headers, so my filters handle it properly.
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Date: 2004-11-06 07:08 pm (UTC)no subject
Date: 2004-11-06 07:44 pm (UTC)no subject
Date: 2004-11-06 07:49 pm (UTC)no subject
Date: 2004-11-07 09:18 am (UTC)no subject
Date: 2004-11-07 12:21 am (UTC)