In case, anyone stumbles into the same problem, i got it working.

Problem 1 was:
necessary .htaccess for applying the rewrite rules was not
part of the current streber distribution (v0.08) :)
This is fixed now i guess.

Problem 2 "Logs-me-out-Problem":
If you use webdeveloper-toolbar for firefox: cookies > delete domain/path cookies seems not to work as expected. I had to clear them manually in my firefox preferences, so i was able
to log into streber again.

Have fun.