If I need to get a development build of the app to you whilst we resolve specific issues I need the UDID of the device so I can register the device with Apple.

To the the UDID of the device, plug your device into a PC/Mac that has iTunes installed, go into iTunes, click on the device so you get the summary page for the device, this will tell you the type of device and the version of IOS, also on this page is the device's serial number click on the actual serial number and this will change to the UDID of the device,  in windows you can right mouse click on the UDID and on a mac CTRL-click then copy the UDID and paste it into an email to me I can then set your device up on the development system.