no issues in installing i insert the new icon into my desktop bar, click on it.......nothing, not even an error msg.
Can you launch iTunes from the Applications folder?
If it won't launch from the Applicaitons folder, run Disk Utility to rule out any problems with the startup disk.
Launch Disk Utility /Applications/Utilities
Select the startup disk in the panel on the left then select the First Aid tab.
Click: Verify Disk (not Verify Disk Permissions)
Boot from your install disc to make any necessary repairs.