earth to forum members..... 
we do have lives outside of this place you know
and to expect an answer within an hour is pretty impatient.............
anyhoo - get hold of some Autosmart Biobrisk and a wet/ vac cleaner
spray the biobrisk onto the seat and scrub with warm water. Then use the wet vac to pick up the water and day out your seat
I wouldn't recommend doing it in this sort of weather unless you got a nice heated garage otherwise you'll have a wet arse well into the spring
