The Festival of Snow, sponsored by local brewery Zywiec, is held each year in February, only in 2007 due to the mild winter the snow sculptures were made from snow taken from the nearby hills! There is also a market featuring traditional local produce and music concerts.
I remember that it is quite common for people to rent out rooms in their houses to visitors. In fact, a friend I stayed with had a sign on their house saying "no rooms for rent" as people were obviously ringing on their door!
There is a nice camping place a bit outside of Wisla on road nr. 942 towards Szczyrk / Bielsko-Biala named "Jonidlo". Walking time 20 minutes to the centre. They also rent cabins. Friendly people, there is a sheltered barbecue place for everyone. They have Wifi on the place. Right next to the camping is a bathing spot in the Wisla (= Vistula river) where we spent hours with our kids. Across the street is a good and cheap restaurant. Right next to the camping is a bar with half-litres of raspberry beer - cheers!