by Dragonrider » 8:44pm, Thu 19 Nov, 2009
How confident are you with MySQL?
Log in to your webspace control panel, find the phpMyAdmin link and click it. Find the database you are using for your phpList installation and click it, now select phplist_admin (depending on your prefix of course, but should be second table down).
Once the right hand side of the page (I'm using cPanel, may be different in Plesk) has loaded, click browse tab and should now see your admin details. You can edit these by clicking the on pencil icon. You want loginname admin, namelc admin, email (yours), password (your preferred password in "the clear" (IE: don't use MD5 etc), superuser = 1, disabled = 0 and save.