I tried that and didn't find anything that said member search. just keyword and that doesn't nothing. This is crazy that you can't search for members by name. you might want to update and don't make it so confusing to navigate your site. This is the hardest site to use. That is why I don't come to it often.

Hello Bill! To search a user on our site you'll need to select advanced search, select Members tab, fill in the username as a keyword and click search! If problems persist please do not hesitate to contact our support team at http://www.xtube.com/contact.php to provide further assistance.
Thank you!