Hi,
I am sorry but the situation didn't changed since the last time :
eWay rapid is not an official HikaShop plugin ; and that plugin is not provided by HikaShop packages.
As you can see in the XML file, the plugin was developed by "Nick Texidor", he is the author and he has the copyright for the plugin.
Nicolas has just attached a version that we received ; we never tested it, we do not have any documentation or test account.
So we can provide some generic help ; As you can see, the current issues are not related to HikaShop but to plugin packaging to feet to Joomla specifications. But if there are other issues afterwards, it will become difficult for us.
If you have issue with the eWayRapid plugin, please contact the author or an external developer to have a working payment plugin.
That plugin won't be include in HikaShop and can't be supported by the team ; we do have any information about it and we are not able to fix it. It will be better to have the real documentation and write the plugin from scratch, using the HikashopPaymentPlugin interface and not a JPlugin one.
Regards,