I've now uploaded the XForm. I had to download the ODK-XLSForm-Offline-windows-v1.6.0.zip then use it to convert.
Thanks for the lift
Now I'm having issues connecting my android device to the server. Each time I try to "Get Blank Form" from the server it reads an error message as filows;
Form listing failed Error. java.security.cert.
CertPathValidationException: Trust anchor for certification path not found. while accessing server
I'm using ODK Collect v1.15.1. I wonder if it's an issue of version