Runway 01/19 was NOTAM'd out of service around mid 2004 if I remember correctly, and was formally withdrawn from use in Winter 2004/5. I believe one of the main reasons for this was the surface which was breaking up and would have required a cost to get it back into a good enough standard to use. The northern part of the runway remained available as taxiway Juliet for locally based light aircraft only until a few years back when it too was closed because of the state of the surface.
Not sure on 10/28, however the Police BN2T used to have dispensation to use it to depart on (as taxiway Bravo) up until they replaced the Islander with an EC-135 around 10 years ago.
Hope that helps,
-HD-