Adobe Reader 7.0.8 is now available for Mac OS X and Windows platforms.
The Adobe Reader 7.0.8 update adds new functionality, fixes a number of bugs, and is more secure.
New improvements in Adobe Reader 7.0.8:
You can now perform a Yahoo! Contextual (Y!Q) web search directly on text selected from within a document. For longer phrases especially, this returns better results than with a regular Yahoo search.
visit Adobe Reader main site and download the update.