No, it will not change automatically.
Probably the easiest way to do it is with good old copy/paste.
You could do a "save config to tftp x.x.x.x config.txt", then load the config into a text editor, search and replace adsl1 for ethernet0/0, and just remove any DSL-specific config lines since they won't apply to ethernet0/0. Then you can save it and just "save config from tftp x.x.x.x config.txt" back to the box and reboot it.