This would be particularly useful to those who purchased second hand cameras and do not have the EOS utility install disk to obtain the software from.

Here are the steps, to put it simply.
1. Go to the canon website and download EOS Utility Update 2.7.2 under "OS X"
2. Unzip the file and right click the installer and select "View package contents"
3. Go to contents>resources
4. Find the document titled Update.plist and delete it.
5. Launch the Installer
6. Enjoy (:

Note: This is only for mac, if you are on windows... Mr Google would suffice.