You can order a leather repair kit from this site: http://www.leatherrepairkits.com/repair_kit.htm- It also gives complete step-by-step instructions on how to repair the tears. The links on the left will also show you pictures on how to do it.
The main difficulty people have with these kits is matching the color. This site has very precise instructions on how to do that and there are 37 different furniture colors available, so you should get a close match. Good Luck!