Microsoft Renews Push Into Entertainment Products  LOS ANGELES (Reuters) - Microsoft Corp. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=MSFT.O qtype=sym infotype=info qcat=news"&gt;MSFT.O&lt;/A&gt; on Tuesday  unveiled a new version of its Windows XP Media Center, along  with an array of new devices and services aimed at capturing  consumer spending on movies, pictures and music.