ok i have it!
thats the way i got the shoutbox in a widget:
1. create a new template, i called it: vbcms_widget_vbshout
2. code of the template: {vb:raw show.vbshout_instance1}
3. save the template
4. create a new html-widget. name it whatever you want.
5. use for the widget the templatename: vbcms_widget_vbshout
6. code of the widget: <div><div/>
7. save it and put it in the layout whereever you want.
8. to get it working you have to disable the Auto-Display of the Shoutbox
Muhaha im so proud of myself, im a real newbie and made it myself