CHANGES in version 2.1.0:
1) Modified the code to fix a bug introduced by Apple in iTunes 7.7.1. Now this works with iTunes 7.7.1.
2) Added more logic in constructing the query to Amazon to improve search accuracy.
3) Amazon changed some behaviors with empty keywords, I've eliminated the existence of empty keywords in the search.
4) Prioritized album art so that it should find the correct album art before single releases. Earlier versions were returning singles instead of the album.