Want a quick redirect, without manhandling system files? Just use the core Path module: on the "URL aliases" form (/admin/build/path), complete 'Path alias' with the path you expect visitors to use, and complete 'Existing system path' with the path you'd like to send them. 'Path alias' can be an existing system path; Drupal will still treat it as an alias and send visitors to your specified path.
You can change a user's name
Changing the name of an admin or any other user shouldn't mess up anything. (All "posted by" info and other references to user name will automatically reflect the new name.) User names are just there for our human convenience; the underlying User ID number is what Drupal is concerned with.
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Good point; thanks! Deleting cookies and/or caches, depending on the problem at hand, is a part...
adding $GLOBALS['tempUser'] = $user; worked but I find it worth noting that I had to delete...
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