How to launch Apple Hardware Test from a USB optical drive?

Hi all!
First off, and before you guys starting proposing solutions I can't implement, I don't, repeat DON'T have a Firewire optical drive, nor am I going to buy one: I recently had to buy a USB LG optical drive to compensate for my SuperDrive going AWOL on me. I used said drive to reinstall OSX about a month ago, so this LG drive works just fine, thank you.
The thing is, I'd like to conduct an Apple Hardware Test, and I know you have to boot from OSX CD n°1 (in my case) to do that. Alas, since I can't boot from the CD in my SuperDrive by keeping the D key down, all I have is this LG thingy, and I wonder how I can conduct my hardware test with a USB optical drive.
I'll sum it up for you:
1) My SuperDrive isn't working, stopped working about the same time I installed this EFIng (guffaw, guffaw) Security Update 2009-001;
2) I don't have a Firewire optical drive;
3) All I have is a USB optical drive and MacOS X CDs.
4) Booting with the OSX CD in my USB optical drive and keeping D, C or alt keys didn't help.
I read in another forum that you could somehow copy the content of the OSX CD on a flash drive, then boot from the flash drive and conduct an AHT, but I'm not sure how it can be done.

Hi!
Looks like we posted at exactly the same time, Glynn! LOL
Anyway, I did just what you said, drag'n'drop and all. The problem is, when I boot from the USB hard drive, it's exactly as if I were booting from the CD: first I'm asked to choose a language, then the install screen appears, and I can either reinstall on my startup disk from the USB hard drive (that's kinda cool, but I don't think I leave in on my USB hard drive, which can only content 40Gb, because I've almost 25Gb worth of data to retransfer soon...
So, in a nutshell, I couldn't find Apple Hardware Test anywhere. I even explored the CD content, but there are so many files...
What's my best option now? Could AppleJack help me here? Can I install AHT on my startup disk and boot on it using a special set of keys?
Almost time to go to work. A 5 minute walk, though...

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