Quite frankly, that saddle package is a complete piece of crap.
A friend of mine bought it and it was misshapen, falling apart, and felt like cardboard. The saddle especially was so bad that there's no way it would've sat on a horse's back correctly.
The OP really is better off saving for a bit longer to buy a good quality, name brand saddle second-hand somewhere. It'll save a hell of a lot of money in the long run - a higher quality saddle will fit better so it won't cause costly back issues, and it will last longer which means she won't have to replace it as quickly.