He is talking about right clicking on an emoticon and clicking ADD i think.
And anyway this is already a known bug in MSN Messenger and it happens to many people. If you search the forums you can see a lot of people with this problem.
Help me! - by InezLyra on 04-27-2005 at 10:52 PM RE: Help me! - by PeRSeO on 04-28-2005 at 07:18 AM RE: Help me! - by RaceProUK on 04-28-2005 at 08:22 AM RE: Help me! - by .Roy on 04-28-2005 at 01:50 PM RE: Help me! - by Sunshine on 04-28-2005 at 01:52 PM