Trouble with upload php

Hi list I have tried a few file upload scrits but none of them work .. I have got a question about it . must I put some variable to httpd.conf for it (Im using apache redhat.6.2 php4 )? I looked server log file there was nothing about it when I press upload it is waiting for a while ( depends the file's size ) and IE gives me DNS error .. if you have and idea please tell me this is one of the script which I tried index.html <HTML> <FORM ENCTYPE="multipart/form-data" ACTION="upload.php" METHOD=POST> <INPUT TYPE="hidden" name="MAX_FILE_SIZE" value="1000"> Send this file: <INPUT NAME="userfile" TYPE="file"> <INPUT TYPE="submit" VALUE="Send File"> </FORM> </HTML> upload.php <HTML> <!-- upload.php --> You submitted this file:<BR><BR> Name: <? echo($userfile); ?><BR> Original Name: <? echo($userfile_name); ?><BR> Size: <? echo($userfile_size); ?><BR> Type: <? echo($userfile_type); ?><BR> <? // Copy the file to C:\upload.txt. Remember to escape backslashes! if (copy($userfile, "C:\\upload.txt")) { echo("<B>File successfully copied!</B>"); } else { echo("<B>Error: failed to copy file...</B>"); } // Destroy the file now we've copied it unlink($userfile); ?> </HTML>