Social Group and Album Enhancements - PB Watermark Album images

There is a new version of this modification available Here that has been confirmed to work in version 3.7.x

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This mod is in beta, it was inspired by this thread yesterday.
https://vborg.vbsupport.ru/showthread.php?t=178296

I'm hoping that posting this beta version in here will help me gather useful feedback on what kind of features might be useful in such a hack.

What does it do:
-Adds a watermark to the bottom right of all images uploaded to users albums.

Planned changes:
1. Allow the url of the watermark image to be changed via admincp
2. Allow location of where the watermark image is placed to be changed via admincp

Installation Instructions:
1. Create or Use the watermark.png I attached, and upload it to your forum root before anything.

2. Edit the file forum_root/includes/functions_album.php and add these functions. I added them right below the Vbulletin Copyright notice.

PHP Code:

/////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////// -ALBUM WATERMARK MOD - image createfrom/saveto file functions-////////////
/////////////////////////////////////////////////////////////////////////////////////////////////////////////
function imagecreatefromfile($path)
                        {
                            $info = @getimagesize($path);
                           
                            if(!$info)
                            {
                                return false;
                            }                           
                            $functions = array(
                                IMAGETYPE_GIF => 'imagecreatefromgif',
                                IMAGETYPE_JPEG => 'imagecreatefromjpeg',
                                IMAGETYPE_PNG => 'imagecreatefrompng',
                                IMAGETYPE_WBMP => 'imagecreatefromwbmp',
                                IMAGETYPE_XBM => 'imagecreatefromwxbm',
                                );
                            if(!$functions[$info[2]])
                            {
                                return false;
                            }
                           
                            if(!function_exists($functions[$info[2]]))
                            {
                                return false;
                            }
                           
                            return $functions[$info[2]]($path);
                        }


function imagesavetofile($image,$path)
                        {
                            $info = @getimagesize($path);
                           
                            if(!$info)
                            {
                                return false;
                            }                           
                            $functions = array(
                                IMAGETYPE_GIF => 'imagegif',
                                IMAGETYPE_JPEG => 'imagejpeg',
                                IMAGETYPE_PNG => 'imagepng',
                                IMAGETYPE_WBMP => 'imagewbmp',
                                IMAGETYPE_XBM => 'imagewxbm',
                                );
                            if(!$functions[$info[2]])
                            {
                                return false;
                            }
                           
                            if(!function_exists($functions[$info[2]]))
                            {
                                return false;
                            }
                           
                            return $functions[$info[2]]($image,$path);
                        }
/////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////// -ALBUM WATERMARK MOD - image createfrom/saveto file functions-////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////// 


3. Import the plug-in attached

[serra00]

I installed it and nothing happened
to do some modification?
where it appears the album?
do not see anything !!!!!!!!