[Plugin: WP Stripe] Cannot make transactions in test mode

I am having a problem after installing the code and can’t seem to resolve this.

When I enter fake data to the my site I get this on the form
Oops, something went wrong (You must supply either a card or a customer id)

Then I get an error message in test mode back on stripe’s servers and error 400 ends up in the logs

Summary

Time:
    2012/03/10 06:37:38
Method:
    POST
URL:
    /v1/charges
Status:
    400

Request body

{
  "description": "Mike Jones - email - for payment",
  "amount": "25400",
  "currency": "usd"
}

Response body

{
  "error": {
    "message": "You must supply either a card or a customer id",
    "type": "invalid_request_error"
  }
}

http://ww.wp.xz.cn/extend/plugins/wp-stripe/