Re: Tags not found
The 404s seem to me to probably come from your
.htaccess files not being set up accordingly. If you have mod_rewrite set to true in your config.php (which you do) then you must update your .htacess file.
Go to http://www.canadianbookclubs.com/bkrv/bb-admin/rewrite-rules.php (probably) and copy the output into your forum folder’s .htaccess file. Try again.
You said something about a hacker?
As far as I know each theme must be in a sub-folder of my-templates.