From the American Heritage Dictionary of the English Language, 4th Edition:
Regional Note: When need is used as the main verb, it can be followed by a present participle, as in The car needs washing, or by to be plus a past participle, as in The car needs to be washed. However, in some areas of the United States, especially western Pennsylvania and eastern Ohio, many speakers omit to be and use just the past participle form, as in The car needs washed. This use of need with past participles is slightly more common in the British Isles, being particularly prevalent in Scotland.
From the American Heritage Dictionary of the English Language, 4th Edition:
Regional Note: When need is used as the main verb, it can be followed by a present participle, as in The car needs washing, or by to be plus a past participle, as in The car needs to be washed. However, in some areas of the United States, especially western Pennsylvania and eastern Ohio, many speakers omit to be and use just the past participle form, as in The car needs washed. This use of need with past participles is slightly more common in the British Isles, being particularly prevalent in Scotland.