2 Feb 23, 2008 16:44
Welcome to the forums.
It looks like your stubs are outdated after the upgrade. Although stubs should be working in 2.4, there is a tendency towards moving all essential settings from the stub files and the config files towards the Backoffice (now called Dashboard).
In your blog settings go to URLs and (for a starter) set the Blog URL to "Default blog in index.php". This should run your blog error free.
In a later course you can change the settings to your wishes and/or have a look at the file blog1.php.