Personally I think that you should be fine to do this and it will result in zero funding for the current academic year.
However if their end date is before 31/7/11 then arguably you may have been overpaid for last year and I don't think the systems are clever enough to work out the correct amounts for the reclaim.
At the end of the day you will have been as fully honest as you can be and I agree with what Chris has said above.
The other things is to try it and see what the LIS makes of it without making any return. The LIS might complain that this learner does not belong in the current academic year and refuse to accept that data, in which case there is your answer!
Hope this help,
Caspar