Displaying Attributes from Files issue

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I have an attribute for file type assigned to my files. So i can display an image next to the description of PDF files. I can list everything but show the image that I selected for the PDF file? any help would be great, below is what I have been trying.
<td style="color:blue;font-size:14px;" >
<?php
    $title="";
    $logo = $f->getCollectionAttributeValue('thumbnail');
    if($logo){ $ih->outputThumbnail($logo, 130,130, $title); } ?>
    <a href="<?php print $f->getURL(); ?>">
    <?php print $f->getTitle(); ?>
     </a>
    <img src="http://www.dadeservice.com/files/1112/9355/7158/pdf.png" width="30px" height="30px" align="middle">
<br />
<br />
</td>


Frank

wizardontherun
 
wizardontherun replied on at Permalink Reply
wizardontherun
Sorry was going to post the whole code.

$ih = Loader::helper("image");
Loader::model("file_set");
Loader::model('file_list');
$fs = FileSet::getByName('Products - Brochures');
$fl = new FileList();
$fl->filterBySet($fs);
$files = $fl->get();
?>
<div>
<table>
<?php
foreach($files as $f) {
?>
<tr>
<td style="color:blue;font-size:14px;" >


this is pasted in the PHP Code block.
wizardontherun replied on at Permalink Reply
wizardontherun
bad day, forgot to post the error message if it helps?
-----------------------------
Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'FileVersion::getCollectionAttributeValue' was given in /home/dreamsp5/public_html/dadeservice/updates/concrete5.4.1.1/concrete/models/file.php on line 37