Deployment to SB1 via FTP?

We have developed an application in our office using standard HTML/CSS/JavaScript and have been deploying it successfully to our SB1 test units using the developer casing. However, we are now trying to deploy our application onto a set of smart badges which do not have the developer backing. We're therefore trying to use FTP as it seems the easiest way (we haven't tried to create a MSP package yet, that is my job for tomorrow) but are not having any success. Is deployment via MSP or via the developer casing the only way? Any assistance detailing the quickest/easiest way to deploy a simple application would be appreciated.