Jose yes this is a modification issue not a problem with photopost pro code and not a function of product support. Just like vbulletin we do not support code modifications.
Now if you visit the modification thread for the modification your trying to do you would see one user had the exact same issue trying to post on support about. He said it was a vbseo
issue so you might want to ask the user in the mod thread what his issue was with vbseo
and the plugin.