Thanks to you all for your replies, I can say no more than , my question has been answered.Thankyou to the professionals.
Just for the record, solo cross country flight no.15 cancelled today because of cold weather, the CFI decided that he could not guarentee the state of my 2 airfields runways in relation to ice.Probably a good call, but god its frustrating.
Cheers once again. Flyfish.