Thanks for the reply , this is exactly what I was looking for, just to clarify my situation,
I'm a PAYE employee. Might be an idea to be a sticky as it appears to pop up a lot.
So, just to clarify , I will be filling in a CG1 form that has to be filled in before Oct 31 2008 as I only realised the loss last week.
Any future gains over 1270, I will inform Tax office by once again filling in a CG1 form and on this including the year of my loss to avail of the carryover.