First, click the Downloads link at the top of any PCWorld.com page to go to the Downloads index page.
If you have a specific program in mind, enter its name in the 'Search for __ in Downloads' field in the black bar just under the Downloads heading. Click on the name of the file in the search results to go to its information page.
Search tips: When entering your search, try to spell the program's name accurately so that the search function can find it for you. Since various letters may be capitalized in the name, try using all lowercase; the search will then consider all lower- and uppercase possibilities. Some product names may be two words closed up to become a single word (such as "ZoneAlarm"), so if your search term is unsuccessful spelled as two words, try spelling it as one.
You can also use the Search field at the top of any PCWorld.com page. Using the site search will return results in a variety of categories, with Downloads files under the Downloads heading on the search results page.