[CCV_Pinto]

I think that to show the info of the person (not your own info), you have to change from:

$mypage = unhtmlspecialchars(process_message_preview($vbulle tin->userinfo['field65']));

to

$mypage = unhtmlspecialchars(process_message_preview($userin fo['field65']));

because the $vbulletin->userinfo referer to yourself, and $userinfo will referer to the person of the profile your are visiting

ps:
pay attention that the variable $userinfo wont be always available
I think this variable is defined only in profile pages, so you would have to add a verification like:

if($userinfo)