You have to install needed plug-ins as well.Actually you have to install GAIM(or Pidgin) first and then install its protocols you want to use (separate entries in app manager). However let's admit that Pidgin is just new version of software previously known as GAIM.I see no clue in using Gaim when there is Pidgin.Pidgin IMHO looks better than GAIM, has more features and bugfixed.