It's easier to enter WPA keys than WEP. Does your router support WPA? Apart from that, all I can suggest is that you double check your entry - there's a lot of room for error when entering 26 keys.
I have never used Clearivue, so I can't comment on the quality. Is there a protective covering that perhaps you forgot to remove? (Just guessing really.)
Does the AVI file play ok on your PC? You can adjust colour in the Settings.