i dont know what you mean by #2 sorry
but also in that code, when updating nick, its more logical to do with steamid as condition no oldnick...
so
Code:
formatex( MySQL_Query, charsmax( MySQL_Query ), "UPDATE `online_players` SET `username` = '%s' WHERE `username` = '%s'", get_user_name_ex(id), OldName[id] )
->
formatex( MySQL_Query, charsmax( MySQL_Query ), "UPDATE `online_players` SET `username` = '%s' WHERE `steamid` = '%s'", get_user_name_ex(id), get_user_steamid_ex(id) )