有人說這句不正確，你們同意嗎？

Regarding "amazedly", this word doesn't exist in the dictionary while amazingly that's the adverb and can be used instead. The followings are the correct used sentences:
She looked at me amazingly.
She looked at me in amazement.

Lkjgslfjso 大大：

我查過一下字典，amazedly 這個字是存在的，是個 adverb，意思也是 in amazement，所以我認為不需要改正。

也有可能是他以為你想寫 She looked at me amazed （這句意思跟She looked at me in amazement差不多，但注意amazed是指she），故他便說你不正確。

要避嫌的話，那就用其他的字代替好了，如 astonished，bewildered 等。

希望幫到你。

2013-05-30 04:51:10 補充：
其實 yip****** 大大所用的 Merriam-Webster Dictionary 是有 amazedly 這個字的：
http://www.merriam-webster.com/dictionary/amazedly

另附上 dictionary.com 的解釋
http://dictionary.reference.com/browse/amazedly

無不敬之意，但我猜 yip****** 的字典可能未夠 updated 所以未有收錄這個字吧。

In she looked at me amazedly; amazed is adjective, hence astonished.
amazedly is an adverb modifying looked;hence She looked at me in an amazing, awe-inspiring manner.
"at me in amazement" is acting as a phrase of a sentence.