Vanilla 1 is no longer supported or maintained. If you need a copy, you can get it here
ResturnURL will not change from http://default/forum/
I recently installed Vanilla 1.0.1 for the first time. All went well except no matter what is set in settings.php the 'Sign In' link in the top right always has ReturnURL set to http://default/forum/*. Any idea why this is happening? Do I have to find the code responsible and hard code a hack to fix it?