It seems that the upgrade feature of app world works. I was looking at the My World section of app world and noticed that the Bloomberg app had the same red star that is shown when you get new emails. Not only does it tell you that there is an update but also gives you the release notes for the new version.
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Take the zip file and extract the files contained in it to your desktop. You will now have a folder called Shazam with two files (Shazam.alx and Shazam460.cod). Open up DM and click the application loader. Next the start button under Add/Remove Applications. At the bottom of the next screen click browse and select the Shazam.alx file from the Shazam folder you extracted. Now Shazam will be listed in your applications list in the app loader. Make sure that Shazam is checked off and click the next button twice to install it to your BB.
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