There are currently no widgets assigned to the right-sidebar, place some!
Once you add widgets to this sidebar, this default information will go away.
This theme also uses the WordPress 3.0 Menu system. You probably see the default stuff you have in the menubar. Go to Appearance -> Menu in the wp-admin (dashboard) and create a new menu.
Ich freu mich, dass es mit der Band so gut vorangeht 😀
Wird es mal vielleicht auf YouTube, oder so mal was zu hören geben? 🙂