Need to Uninstall AIR on Old iMac running Tiger

Please ! Help me! 

I'm on an iMac 5,1 running OS 10.4.11

I had a HD crash earlier this week and am running from my External backup HD.  I bought a second ext. HD and need to backup to that to protect everything.  I spent 10 hours copying to the new HD only to have it fail because of AIR with this message :

| 08:34:39 AM | Error | ditto: /Library/Frameworks/Adobe AIR.framework/Versions/1.0/Resources/it.lproj/AuthDialog.nib/./keyedobjects.nib: Input/output error

I need to UNINSTALL AIR from my Ext HD - the version I have of AIR is: CFBundle version: 1.5.0.7220

I tried Adobe Chat and they sent me here.

Inside my Finder I have:

/Applications/Utilities/Adobe AIR Application Installer

and

/Applications/Utilities/Adobe AIR Uninstaller

If I click on the Uninstaller, it gives me a message that says "An error occurred while uninstalling Adobe AIR.  Uninstallation may not be allowed by your administrator. Please contact your administrator."

I am the only user/owner/administrator

Can someone PLEASE help me get this AIR off my HD so I can finish my backup?  I have NO IDEA what AIR is or what it does.

Thank you so much in advance for helping me!!!!