Is APTHost planning on giving all of you direct access to the NGinx configuration files? If not, then I don't see how you could use them with vShare. Unlike Apache, which offers a .htaccess file that Apache can read and process relative to your site, NGinx does not offer this ability. Rather, all of the rewrite rules are written directly into the NGinx configuration file for each site, which I doubt that APT would give you access to. Changing the rewrites for NGinx is going to be tricky and complicated because the rewrite system in NGinx is absolute, not relative (like it is in Apache). This means that rewrite commands would have to be written for each site specifically and cannot be generalized. You may end up having to find another host.