Orders not appearing as confirmed after payment

I understand that the HikaShop admins are away until January, but I'm hoping that they sneak a peek at the forum or another community member can answer my question.

I am able to checkout successfully with both PayPal and Google Checkout on my site, confirm payments have been made as the buyer and confirm that payments have been made as the seller. My orders are not changing from 'created' to 'confirmed', though, which should then trigger my HikaSerial e-mails to be sent. What setting am I missing?

Something that may be affecting the payment confirmation communication back to my site is that I have the site set to 'offline' in the default Joomla Global Configuration settings. I have it set this way because I want my site to be available only to invited guests who's Joomla accounts I have setup for for them.

Update: I made the site live and orders are still not changed to 'confirmed' after payments have been completed.

Jerome, thank you for taking the time when you are supposed to be on holiday. I already looked for the HikaShop payment log file in the default folder location, but there was only a .htaccess file. I created another directory on my server outside of joomla as suggested in the documentation. Still no payment log file showing after trying another transaction.

I had to turn on the error log on my GoDaddy hosting. I tried another transaction and no error log appears there as well.

Can I give admin access to you? This is the last step before I can go live with the site.

Thanks, Eric.

Jerome wrote: When a front-end page is asked, the user is automatically redirect to the authentication page.
Notification can't be called : index.php?option=com_hikashop&ctrl=checkout&task=notify¬if_payment=paypal&tmpl=component&lang=en

Thank you for checking my site. I just don't know what to do with the information you are giving me here. My client setup his own PayPal and Google Checkout accounts. Do I have to change some settings in these accounts instead of HikaShop?

Ok, I made the site live via the Joomla Global Configuration. Orders are now appearing as 'confirmed' when using PayPal, but not Google Checkout. I now see that I have to copy/paste a URL into my client's Google Checkout API Callback settings. Will it automatically mark the orders as 'shipped' at some point? I don't think I'll need that to happen, though, as the 'confirmed' e-mail included the HikaSerial serial data (gift card numbers) that I need to send.