I had posted in another thread that I had gotten video chat to work with working audio using this: Download Skype - free IM & video calls 2.8.0.920 .apk Android app version of skype on my viper with the zvk software version. So either no one read that post or maybe they tried it and it just doesn't work for them which is weird because it definitely worked for me. If it doesn't work for you then I would be curious to know what version of skype and phone software are you running.
If you don't trust that link then just google for "skype 2.8.0.920" and find a different place download it.