in member.php in the getinfo section, you can find for example this code:
PHP Code:
if ($userinfo[homepage]!="http://" and $userinfo[homepage]!="") {
$userinfo[homepage]=$userinfo[homepage];
} else {
$userinfo[homepage]="";
}
just altering to something you want for example:
PHP Code:
if ($userinfo[homepage]!="http://" and $userinfo[homepage]!="") {
eval("\$userinfo[homepage] = \"".gettemplate("postbit_homepage")."\";");
} else {
$userinfo[homepage]="";
}