Hi,
I checked your site directly. The JavaScript file ( media/com_hikaauction/js/hikaauction.js ) has been correctly updated and it contains the new live formatting functions. However, the auction product page is not outputting the currency configuration that the JS needs to do the formatting. This means the PHP template show_auction.php is still on the older version.
Two likely causes:
1. You have a template override of HikaAuction's auction product display. Please check if the file templates/YOUR_TEMPLATE/html/com_hikaauction/productauction/show_auction.php exists. If so, that override needs to be either updated or removed for the new code to take effect.
2. The file wasn't actually replaced during the install (permission issues, partial extraction). Please check the modification date of components/com_hikaauction/views/productauction/tmpl/show_auction.php on your server. It should be recent. If it's old, you may need to manually delete it and reinstall, or check that your FTP/file user has write permissions.
To confirm which case it is, you can check whether the file components/com_hikaauction/views/productauction/tmpl/show_auction.php contains the line window.auctionPage.currency =
If it doesn't, the install didn't update it.