The config options page was changed drastically starting in 2.0 Beta 2. The page was made a tabbed interface and now shows some additional settings besides just the Minecraft server settings. Here you can set the Crafty Historical Logging option, Backup settings such as Folders to backup, and where to backup. You can also setup the Minecraft server settings here. For security reasons, you can’t set the web server port here. You will need to edit the sqlite database directly, or just delete Crafty.sqlite and rerun the installer.