Hi,
Please be sure that you are overriding the view for the right front-end template.
To test if you are editing the right view, you can add some "raw text" (text without brackets) in order to see if the text is display afterwards in the invoice ; then you will be able to set the tags you want and the order you want.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.