If the payment status is "complete", please see our troubleshooting page for possible issues.
If the payment is pending due to it being an echeck or for any other reason (contact PayPal for possible causes), the email will be sent once the payment is completed.
If you want, you set your preference to process pending payments as instant payments in E-junkie Seller Admin > Preferences.
For selling on eBay, please see
http://www.e-junkie.com/ej/help.ebay.php