I have one somewhere m8,
tbh I find its as easy to use the tmp folder for 2/3 days epg with a cron set to update it everyday so you always have 2/3 epg as with a network mount you need your pc on all the time,
infact my box wouldnt even boot if the pc was off when it was relying on the mount for its epg ,
but what with the radiotimes.xml source being more down then up its very hit and miss at the moment,
I will have a look for the tut and post it when I find it though.