I found all files, copied them, renamed them and updated the "bank_transfer" in the code to the new name (ie 60daynet) and uploaded all of them. The payment method showes in the admin panel, so so far so good...
However, when I hit install, it gives me an internal server error, although after refreshing the list it does show as installed. But when I try to edit it, a new error appears (http 500).
The error log shows errors, but not something which I can use or has anything to do with the payment methods:
Can anyone tell me how to make this work?Undefined variable: username in admin/view/template/common/column_left.tpl on line 5