BookPost doesn't always work

It doesn't work if the string "ASIN" is not present in the url. Often Amazon URLs will not have this string e.g. http://www.amazon.com/exec/obidos/tg/detail/-/0140586717/qid=1089783373/sr=1-2/ref=sr_1_2/103-0165204-0766231?v=glance&s=books. So I hacked into BookPost to work with both styles of urls. BookPost2