PeopleSoft Posts Profit  SAN FRANCISCO (Reuters) - PeopleSoft Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=PSFT.O target=/stocks/quickinfo/fullquote"&gt;PSFT.O&lt;/A&gt; on  Thursday returned to profit in the third quarter from a year  earlier with a 12 percent rise in sales that upended market  fears that Oracle Corp.'s takeover bid had damaged PeopleSoft's  business in the quarter.