chris i have mistaking read the data wrong from the mysql results, you can follow the edits below or just download the updated version now.
goto admincp->plugin system->plugin manager,
and edit the plugin called image hosting 2.1 hook forumhome_start
you will need to find
PHP Code:
$userid=$rows[0];
and change it to
PHP Code:
$userid=$rows[1];
this should solve you error and everbody else will need to update or make this code change.
thanks for your patience