Ichat has dissappeared ...

I accidentally somehow managed to delete ichat off my computer today. Here is what happened:

I was practicing using a wacom tablet and unintentionally dragged the ichat icon off the dock and it disappeared. Ok, so I looked for it in applications. When I found it and tried to drag it back to the dock, it accidentally got put into the Ichats folder. So I opened it to drag it back out, and then somehow dropped it and it just vanished.

Now I can't find it anywhere even with a search. I tried to reinstall it through the CD that came with my mac, and it installed Garageband and IPhoto, etc but still can't find Ichat. I did a general install so I assume it should've installed Ichat as well.

Any ideas how I can get it back?

Thanks for your help.

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