If the device isn't a managed device already, WinPE should send in a miniscan which will use the MACaddress of the device as devicename. In your case, you should for example look for a device called BC305BE03057.
If you don't see this device, check the errorscan folder in Managementsuite\Ldscan and/or the Windows Application event viewer. In the errorscan map, the file should have an extention called .miniscn.
It can also be the device is there but was processed after you tried to start a template. In this case, in WinPE, open a cmd, go to x:\ldprovision and run ldprovision.exe to try again.
Finally, make sure your WinPE (PXE Representative) is up-to-date with the version of LANDESK.
Frank