Missing the Canon EOS utility and can not find your CD. Canon does not provide the original version of EOS utility on their website. All the updates they do provide can only be installed on your system if you have the old version on CD or on your Hard drive.
I have encountered this problem and I found a solution for mac.
First of all, get the update for EOS Utility from the official site. The important part is has to be the EOS Utility 2.4 Updater for Mac OS X (Mac OS 10.3 -10.5)
The newer version can not have this hack applied to it.
After you download it then drag the app to your desktop and then right click to “show its contents” Then navigate to [Contents > Resources] and remove the file (update.plist)
Now you can run this application as a normal installer and not just an upgrader.
