theres a bloke who teaches in the Music Box in the town centre, you could try asking in there about it. It was £6.50 for 30 mins when my son was doing it last year
There is a new music shop in Oswaldtwistle next row up from where chimes used to be. I know mark does guitar lessons. I'll ask him to take a look at this site or get his number.
After Xmas, finding someone to teach guitar will be very hard as they get busy because many kids get them for Xmas.
I had to go all the way to Barnoldswick for my son.
(I can pass on his info if you get desperate).