There is a salsa school just opened near Christo Bros in Larnaca. There are across the lights from Carrefour, on the same road heading towards Livadhia. Looks very impressive.
As for the other.....Try the Antidote Theatre 24822677 or Skala 24637952
I know they were doing Salsa lessons at Larrys bar opposite the Princess Hotel on Dekhelia Road. Don't know if they still do that or have gotton shot of it.