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Unfortunately, the US Lite-On DVD recorders have an NTSC hardware tuner, where as the European version has a PAL hardware tuner. This basically means that there is no way of converting the DVD recorder to PAL, at least without physically replacing the internal tuner circuitry. :doh:
It would be worth checking to see if there is a 'TV Type' option in the System menu. If so, chance this to PAL as this would at least let you record from PAL sources connected up to the composite inputs. However, even if this option is present, it will do nothing for the TV Tuner issue.