I'm having a real senior moment here. I cannot see disk copy!!
Here is a screen shot of my utilities folder

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I am trying to run LW from the applications folder. I put LW in disk utility for the screen shot and opened it.

That's odd. Check your applications folder. It looks like that's the reason you were having so many problems mounting the image. At least Disk Utility can also mount images, but you should also have disk copy. Try an OS search for it using Sherlock search.

I haven't got sherlock, as I haven't OS9 but I did a spotlight search for "disk copy" and only disk utility came up.
I also did a search in the top of the finder window but only disk utility came up.
When I want to copy a disk I use disk utility I was thinking it was the same application

No ... sounds like something was wrong the your OSX installation. Did you check your startup disk to see if it's on there. By startup disk I mean the installation disk. If it's not on there then perhaps the imac's don't have it. But that sounds strange. I could ask other OSX members whether Disk Copy comes with imacs.

The search function was still called sherlock in Panther 10.3 so perhaps that's where I got confused since I have both 10.3 & 10.4 & OS 9 on this computer. I did a search found it & found 3. One on each partition I have OS's installed. I didn have Tiger installed on my OSX partition so perhaps it's remnant or perhaps it's still called sherlock.

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When I put in my installation disk to do disk repair, it kept going back to the desk top, the normal language etc didn't come up. I put in the tiger disk and it came up, so I used that disk, is it any use putting that disk in to check whether or not there is disk copy? Or is this getting away from the problem in hand and diverting?

Gee that was quick. You came & went before I added the image. lol

Yes have a look in the utilities folder of that disk to see if it's there. Or even the applications folder if there is one on that disk.

(BTW I believe the new 10.5 Leopard will drop sherlock completely & only have Spotlight.)

I found sherlock in my applications folder, but I can't see there is a way to use it for this function. It has internet, applecare, eBay, flights, Dictionary,Translation in the top tool bar!!!
I'll go and look for disk copy

Yes you're right. Just I believed the Finder's Find command was also known as sherlock but perhaps I'm mistaken.
I've never used that application itself.

Nope I cannot find Disk Copy!!