Yeah, it looks like you don't need a fuel filter at all! I suppose you could splice into the existing fuel lines, but it isn't exactly a servicable item, so I'm just going to leave it.
I just got all the filters from ebay, they were all freepost, so you can just pick the ones you want. I fugured that they wouldn't sell one if it wasn't needed, but I guess not, bit of a bloody cheek really!
Cost about £25 for oil, air, and pollen filters (the ones in the cabin), definitely worth it, but the pollen ones were a bit of a faff, hadn't been changed since 2006!