Re: I cannot find .htaccess file to moderate it
you don’t want write on public for your root folder – the recommended permissions for htaccess file is 644 -rw-r–r– try just modyfying the permissions for the actual file .
this page of the WP codex is helpful if you haven’t already run across it.
I would give it a read as it sounds as though you may well have set slightly dangerous file/folder permissions now.
Editing a file without filename on windows systems is possible you just need to use a decent code/text editor, but definitely not notepad or the like, failing that you should be able to upload say htaccess.htaccess and simply rename it once uploaded to the remote server removing the filename.