Hi,
I did a test on your website and I'm receiving the email notifications that I tested. For example, after placing an order, I got that email:
take.ms/ycwpZ
So as far as I can see, emails are still working after the upgrade.
You can edit your emails, including the email subject, via the menu System>Emails.
Yes, the buyer receives an email confirming him the creation of is order on the website when the order is created before he is redirected to the payment gateway. If you read the text in this email, it tells him that his order will be confirmed after his payment of the order. It's really important you have that email, for example if you accept bank transfers or checks as you want to send an email to the customer before the payment is received so that he has a trace of the order on his end.
As I said at the beginning of this thread, you can deactivate it via the menu System>Emails.
I've check your website backend with the access you provided before, and unlike what you say in your last message, you didn't deactivate that email, so it's normal that the buyer still receives it:
take.ms/VXY6K
You also said that the seller doesn't receive any emails.
So I've changed temporarily the "Order creation admin notifications email address" setting of the HikaShop configuration to my email address and then did a test purchase. I received the seller notification email:
take.ms/ovl08
So that's also working.
You say that HikaShop is messy and that we're fooling you, but we can't confirm any of the issues you're talking about in your messages when testing on your website. I'm sorry but we can't do much when we see that it already works fine.