I was able to successfully make a payment with eWay. If you're using an eWay test account please ensure all purchases have no cents. Example $10 will be successful, but $10.70 will fail (this only applies to test accounts). Please note you need HTTPS on return from eWay or you'll get a mixed content warning and it may fail.

As for the missing email, we add the email address that the gateway gives us there. In this case the gateway gives us nothing, not even name (we add that from user object). So it's normal for it to show no email. The same applies to "Credit Card"; the gateway doesn't give us this information so it's left as generic "Credit Card".

Please also keep in mind your site must be in the currency of the eWay server you're attempting to use. For example if the server is set to AUS then your currency must be set to AUD or it will fail.

For issue 2, can you please click on the error details and paste them here ( you can enclose in bbcode [ CONFIDENTIAL ] here so that any private info doesn't become public (you are also welcome to edit your original post if needed to enclose any private info with that.

For issue 3: normally, transaction numbers are for the merchant only, as the buyer will get different ones from his credit card issuer, and should normally not be displayed on the invoice. Did I miss any local regulations ?

Thanks, seeing that there is some information for this error that is not logged. Added logging and will email you a build in some hours for a second pass.