I got a 4-key flute from my uncle as a gift, and I can't figure out the fingerings! Also, can someone tell me how to fix cracks in a wooden instrument? It's a really lovely thing, but I think the cracks are making it difficult or impossible to play.

Try the following web page for a fingering chart.

http://www.woodenflute.com/playing/fingerchart

You can get some ideas on crack repair on the following web page.

http://www.skiphealy.com/instrument/care_repair.htm