I just developed the mentioned Plugin. I uploaded it to the repo using TortoiseSVN. All worked fine so far.
Today I updated my plugin from 0.1 to 0.2:
Branch/tag by copy trunk to /tags/0.2
But it still shows Version 0.1 (http://wordpress.org/extend/plugins/facebook-comment-control/)
Can anyone tell me how I tell wordpress extend that I got a new version? (Stable release in readme.txt at /trunk is 0.2)