I think, there is a Bug in the htaccess File. Ther should be added a RewriteBase by default.
Like this:
RewriteBase /
RewriteRule (.*) index.php
On my Server it only work with this RewriteBase. So you could have more Installation on one Domain or on the Developer Workstation.
RewriteBase /oxwall-1.4.0/
RewriteRule (.*) index.php
And I can access the site by using:
http://localhost/oxwall-1.4.0/
Please fix this isue. It should also be Part of your Installation Manual.