You can find the dates of Vipassana courses in the Austria in the course schedule. From there you can apply online for all listed courses for adults.
Courses for children and teenagers are also avialable in Austria. To register please visit the course schedule website. For further information please refer to the Children's Course page of the German Vipassana Organization.
You can find more courses for old students who already participated in Vipassana courses of this tradition on the special homepage for "old students". It can be reached with the link 'Informations for old students' (username and password can be found in the Vipassana Newsletter).