I wrote a php script to upload 2 images to a directory on my website. In the html form i used this:

<form action=toevoegen.php method=get enctype='multipart/form-data'>
<td><p class=normal>Image outside:</td>");
<td><input type=file size=25 name=userfile[]></td>
<td><p class=normal>Image inside:</td>
<td><input type=file size=25 name=userfile[]></td>
</form>

In the upload script i used this:
if ($userfile_name[0] != NULL):
$dest[0] = 'fotos/'.$userfile_name[0];
copy( $userfile[0], $dest[0] );
endif;

if ($userfile_name[1] != NULL):
$dest[1] = 'fotos/'.$userfile_name[1];
copy( $userfile[1], $dest[1] );
endif;

I selected two files on my computer, the 're in the dir d:websitesweboimages
The result on internet is the following:

Warning: Unable to open 'D:WebsitesWeboImagesafkortzaag.jpg' for reading: No such file or directory in /www/www.twente-online.nl/poortman/toevoegen.php on line 10

Warning: Unable to open 'D:WebsitesWeboImagesbalken.jpg' for reading: No such file or directory in /www/www.twente-online.nl/poortman/toevoegen.php on line 15

Whats going wrong?
I made this script on my linux system at home (apache, php4, mysql 3.22) and it worked! But when i put it on the server of my ISP (also linux) this where the failures.

Thank you in advance
Pieter