Sorry Keith, I think I've given you duff info. I checked with Everest and the drive I thought was showing up in Device Manager is in fact a virtual drive that was added by Alcohol (I installed it ages ago and haven't had any problems with it at all). It would therefore appear that Windows knows nothing about either device unfortunately.
I can't tell the exact model of both items - the DVD writer is a Pioneer 108 (according to sticker on the side of it) and I can see firmware upgrades for it on their website (Pioneer UK
The CD writer is an LG, but I can't find any more info on it. Its just a standard 52 speed model, nothing more to it. Not sure if there's anything I can do to get the specific model though - happy to take it out the box if you think its worth it (presumably a label on the top of it or something?).