I have not tested this, but should work.
Edit modules\boonex\simple_messenger\classes\BxSimpleMessengerModule.php
At about line 732 look for this.
if ( $aMessages && is_array($aMessages) ) {
foreach( $aMessages as $iKey => $aItems )
{
$iKey = (int) $iKey;
$iCountMessages++;
$iLastMessageId = $aMessages[$iKey]['ID'];
$aTemplateKeys = array(
'message' => $aMessages[$iKey]['Message'],
'sender_nickname' => getNickName($aMessages[$iKey]['SenderID']),
'date_add' => $aMessages[$iKey]['Date'],
'owner_nick_extra' => ($aMessages[$iKey]['SenderID'] == $this -> iLoggedMemberId)
? 'sender'
: 'recipient',
);
$sOutputMessages .= $this -> _oTemplate
-> parseHtmlByName( 'message.html', $aTemplateKeys );
}
}
Change to this.
if ( $aMessages && is_array($aMessages) ) {
foreach( $aMessages as $iKey => $aItems )
{
$iKey = (int) $iKey;
$iCountMessages++;
$iLastMessageId = $aMessages[$iKey]['ID'];
$arr = getProfileInfo($aMessages[$iKey]['SenderID']);
$sFirstName = $arr['FirstName'];
$aTemplateKeys = array(
'message' => $aMessages[$iKey]['Message'],
'sender_nickname' => $sFirstName,
'date_add' => $aMessages[$iKey]['Date'],
'owner_nick_extra' => ($aMessages[$iKey]['SenderID'] == $this -> iLoggedMemberId)
? 'sender'
: 'recipient',
);
$sOutputMessages .= $this -> _oTemplate
-> parseHtmlByName( 'message.html', $aTemplateKeys );
}
}