Cool, we've been having the same problem round hear (Suffolk) although our suppervisor started a supporter course of her own back at the end of last year. I really wanted to do it but I missted out on as was due a baby any day at the time. Hopefully I'll be able to do the next one.
She's also just managed to sercure funding for the next year which means we can keep going which is great :-). I've found the BfN really good, I espicaly like the fact we have to attend regular supervision seasion to keep our registration so we're also kept upto date on any new developments.