Dynamic saving and showing images

I am using php/mysql/apache linux server hosting for my site and testing the site on firefox 3.0+

I am creating a travel blog so I want to give my users a facility to uploaded images. I let them upload all images in a single folder "spaw2/uploads/images" and giving names of the files little dynamically using following code in spawfm.class.php

spawfm.class.php (line no 514)

I change from
if (!@move_uploaded_file($uplfile['tmp_name'], $this->getCurrentFsDir().$uplfile_name)) {
to
$uplfile_name = $_SESSION['user_id_session']."-".$uplfile['name']; // i added this line
if (!@move_uploaded_file($uplfile['tmp_name'], $this->getCurrentFsDir().$uplfile_name)) {

where $_SESSION['user_id_session'] is the unique ID of a "loggedin user" who is uploading the file. so this way I upload images. for example if a user's unique ID is "007" then his uploaded files names will be like >

007-myfirstimage.jpg
007-mysecondimage.jpg
007-mysecondimage_1.jpg

and so on.. it works fine till now . oh yes, and to make it successful i place session_start(); in the few php files to get value of $_SESSION variables. well this is not my problem.

my problem now is I want to show a user only his own uploaded images in "SPAW file manager 's file list"

I used a dirty trick in line no 276 in spawfm.class.php where I converted from >

foreach ($directories as $key=>$file) {
$directories[$key] = array(
'name' => $file,
'date' => $this->getFileDate($file),
'size' => $this->getFileSize($file),
'descr' => $lang->m('file_folder', 'file_details'),
'icon' => '../plugins/spawfm/img/'.$config->getConfigValueElement('PG_SPAWFM_FILETYPES_ICON_FOLDER', 'icon'),
'icon_big' => '../plugins/spawfm/img/'.$config->getConfigValueElement('PG_SPAWFM_FILETYPES_ICON_FOLDER', 'icon_big'),
'thumb' => $this->getFileThumbnail($file),
'other' => ''
);
}


to >

foreach ($directories as $key=>$file) {
$bravo_target=$_SESSION['user_id_session']."-"; // i added this line
$bravo_img=substr($file,0,strlen($bravo_target)); // i added this line
if($bravo_img==$bravo_target){ // i added this line
$directories[$key] = array(
'name' => $file,
'date' => $this->getFileDate($file),
'size' => $this->getFileSize($file),
'descr' => $lang->m('file_folder', 'file_details'),
'icon' => '../plugins/spawfm/img/'.$config->getConfigValueElement('PG_SPAWFM_FILETYPES_ICON_FOLDER', 'icon'),
'icon_big' => '../plugins/spawfm/img/'.$config->getConfigValueElement('PG_SPAWFM_FILETYPES_ICON_FOLDER', 'icon_big'),
'thumb' => $this->getFileThumbnail($file),
'other' => ''
);

} // i added this line
}


but strange .. its still showing all images resided in "images" folder where as I only want to show list of the files which are only his own uploaded by a user.