[itsm] Questions about config item search

Hi, I would like to do a "Warranty Expiration Date"-search over all items. Doing that shows me 2 problems: - The first problem is I can't do a search in the future because the calendar field shows only the current year and the years before. - The second problem is I can't do a search with a month or year only. For example: The search of what computer expires in the year 2009 is not possible. What must I do to get this functionallity? Thank you, Benjamin