There are two great books on Custom Auto Upholstery - should be available at any large bookstore. They go into great detail on how to do that kind of thing.
http://www.amazon.com/gp/product/1931128006/sr=8-3/qid=1143310078/ref=sr_1_3/102-1879156-4823348?%5Fencoding=UTF8
http://www.amazon.com/gp/product/1931128189/sr=8-2/qid=1143310078/ref=sr_1_2/102-1879156-4823348?%5Fencoding=UTF8
