shipping not adding to other zones

Hi,

It's possible that it comes from a change you made in a custom address field.
For example, if you unpublished the address_country field and used your own, of if you changed its type, that could create such error as the system would have no way to match the country in the address and the country code necessary for the Australia Post plugin.

If you could give a link to the shop, with potentially a user account with the address resulting in that error, we could more easily look at the issue.

Hi,

You get the AUD currency code instead of the $ because of the "format" option of your currency. You need to edit it via the menu System->Currencies and change it to %n if you ant the $.

The weight is displayed on the product page because you turned on the "display weight" option of the Display tab of the configuration.

PayPal will only display the "don't have a paypal account" link if your PayPal merchant account is a Business account. There is nothing you can do for that in HikaShop. That's something related to your PayPal account only.

I don't see any shipping view nor any address view in your checkout. That's also why you don't get the error message since you removed them.
Also, you should make sure that you didn't select any zone restriction in the "zone" field of your Australia Post plugin. That option should be left empty and the air and sea shipping methods should be ticked, otherwise, the Australia Post shipping methods will only be displayed for Australia addresses.