Have you tried adjusting your auto color settings in the options button in your levels and curves dialog box?
Here’s a great printer friendly tutorial by Bruce Fraser that might help you with the new neutrality adjustment settings in PS 7. Big time saver for turning mediocre photos into great looking ones with the click of a button:
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http://www.creativepro.com:80/printerfriendly/story/17164.ht ml>
He has other very informative tutorials at creativepro.com.