How to re-allocate space (Volume) in between the Partitions ?
 

I have attempted to partition the Hard Drive of Windows Vista. I have partitioned the Hard Drive as (C:) with 73 GB, (E:) with 142 GB and (F:) with 990 MB and (Q:) with 0. Now my plan is to re-allocate the available spaces in between the Partitions as below :-
(C:) = 100 GB
(E:) = 130 GB
(F:) = 15 GB
(Q:) = Delete at all.
Please advice me how this can be carried out without any data loss. At present at Partition (E:), (F:) there are very much available surplus spaces, so re-allocation will not trigger any data loss.