General Support: Need help with API logic please

Hello,
I'm trying to make a simple loop using the abstration layer given by the API but in vain.
I have a gallery test that contain a collection I created with 2 albums with pictures in them) but when I try to loop using collections or albums object, I always got : "No collection yet" !

This is the code I'm using :

<?php
include("plog-globals.php");
include_once("plog-load_config.php");
include_once("plog-functions.php");

if (plogger_has_collections())
{
print '<ul class="slides">';
while(plogger_has_collections())
{
$row = plogger_load_collection();
$desc = plogger_get_collection_description();

print '<li class="thumbnail"><div class="tag"><a href="' . plogger_get_collection_url() . '">';

// generate XHTML with thumbnail and link to picture view.
print '<img class="photos" src="'.plogger_get_collection_thumb().'" title="'.$desc.'" alt="'.$desc.'" />';

print '</a><br/>';

print plogger_download_checkbox(plogger_get_collection_id());

print plogger_get_collection_name().' <br />';
print '<div class="meta-header">(';

$num_albums = plogger_collection_album_count();
print $num_albums . ' ';
print ($num_albums == 1) ? "album" : "albums";

print ')</div></div></li>';
}
print '</ul>';
} else {
print "No collections yet";
}
?>

I might be missing some initialisation in the first line of codes but I can't figure out which one.
Please help guys.
Thank you in advance.
Pascale.

whe tried to include "gallery.php" I got a redeclare error.

Is there any documentation around where I can find an explanation on how to initiate and use the Collection Loop, Album Loop and Picture Loop ?

Regards.
Pascale

think this will work..

<?php
require('gallery.php');

plogger_get_header();

if (plogger_has_collections())
{
print '<ul class="slides">';
while(plogger_has_collections())
{
$row = plogger_load_collection();
$desc = plogger_get_collection_description();
print '<li class="thumbnail"><div class="tag"><a href="' . plogger_get_collection_url() . '">';
print '<img class="photos" src="'.plogger_get_collection_thumb().'" title="'.$desc.'" alt="'.$desc.'" />';
print '</a><br/>';
print plogger_download_checkbox(plogger_get_collection_id());
print plogger_get_collection_name().' <br />';
print '<div class="meta-header">(';
$num_albums = plogger_collection_album_count();
print $num_albums . ' ';
print ($num_albums == 1) ? "album" : "albums";
print ')</div></div></li>';
}
print '</ul>';
} else {
print "No collections yet";
}
plogger_get_footer();
?>