Does apache work on 8083? If so, then check for the following three lines in your httpd.conf file:
LoadModule php4_module libexec/libphp4.so
AddModule mod_php4.c
AddType application/x-httpd-php .html .php .phtml .htm
Note that the extensions on the end tell apache which file extensions to treat as php. On our big intranet box at work, that includes .js .css as well as all the phtml, html, php, extensions. you can also use multiple addtype lines like so:
AddType application/x-httpd-php .html
AddType application/x-httpd-php .htm
AddType application/x-httpd-php .phtml
If apache isn't reponding to 8083, then you need a listen directive as well.