Well here is my altered code that works for me. Note, I didn't care about the guest code as I don't allow guests to view my board
PHP Code:
//Avatar on Homepage Code
if ($bbuserinfo[userid]!=0) {
$avatarurl=getavatarurl($bbuserinfo[userid]);
if ($avatarurl=='') {
$avatarurl='images/noavatar.gif';
}
$avatarimage='<a href="member.php?s='.$session[sessionhash].'&action=editavatar"><img src="'.$avatarurl.'" border="0"></a>';
} else {
$avatarimage='<a href="register.php?s='.$session[sessionhash].'&action=signup"><img src="images/guestavatar.gif"></a>';
}