Thanks, finally my wishlist is free from Amazon's confining interface! I made a userscripts account just to express my gratitude. Thanks Deathalicious!
Note: I had to add http://www.amazon.com/wishlist/* to the script's list of included pages for it to work. Apparently, amazon.com/wishlist/* is merely a nonstandard URL you get when accessing your wishlist through a special link after having just added a book to it. Normally, one's website is in fact available at http://www.amazon.com/gp/*
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