Cheers bro.
I did actually see that straight away but wasn't sure if it was what I was looking for. I've worked through it and it seems to work but file transfers are slow. 200mb takes about 2 minutes or so. Is that about right?
Also, it didn't ask me for ip addressees or anything, just the workgroup. The guide didn't mention anything about port forwarding firewalls, which some other guides have mentioned?
Cheers.