typo?
拝啓(haikei) at the first.
敬具(keigu) at the last.
and other opening and closing words(english like),
for friend.
～さん（様）へ - for
her/his name san(sama)he
～より - from
your name yori
for your respecter. It remind me of shoujo manga.
親愛なる～様
sinainaru
her/his name sama
貴方の～より
anatano
your name yori
At first sentence, you put some
season related word.
e.g.
We see signs of spring here and there.
The rainy season began at last.
How are you getting along in this hot summer? I hope you are quite well.
etc...
At final Greetings, you wish her/his happiness and health.
And more infomation,
Expressions used in Japanese Letters - How to write Japanese letters
http://www.kakikata-g.com/tegami/basic/(jp site)