Your question isn't very clear, but I'll take shot:
Initialize an array with the total number of data points (including padding) with zeros. Then, use replace array subset to insert your actual data. Based on the insertion point, you can pad with zeros before or after.
If this doesn't help, please post your code.
>
"There is a God shaped vacuum in the heart of every man which cannot be filled by any created thing, but only by God, the Creator, made known through Jesus." - Blaise Pascal
