Use iChatAV with older G3s

Question: Is there a way to use Apple's new iChatAV software with older G3 computers? It seems that newer G4 computers are the only ones that can use iChatAV.

The IT Guy says:

Yes, a free driver for older G3 computers and non-DV webcams is available in beta which works in many cases ( The driver doesn't address compatibility issues with non-iChatAV users (you can only video chat with other Mac users running iChatAV), but it does allow older computers as well as older USB cameras to work with the new software.

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