Capital Gains Distributions Tax

Question: very complicated tax situation?
my wife’s mother has held mutual fund stock for my wife for the last 5 years or so. Do we have to report the capital gains and what not reported from these mutual funds? On this form 1099 statement, it reports ordinary and qualified dividends, and Capital Gain Distributions along with foreign tax paid. (the mother is labled as the customer, and it is for her daughter…(my wife)) do i have to claim this stuff.. why are taxes such a clusterF***?
yes.. i know the details, its customer “mom smith for daughter differentlastname”
Answer: if the mother is the primary on the account then she is supposed to claim the gains and losses, etc.
Pioneer Investments Declares Monthly Distributions for Closed-End Funds
BOSTON—-Pioneer Investments today announced the declaration of dividends for four closed-end funds for January 2010. The closing market price, annualized market price distribution rate, NAV, and NAV distribution rate are based on data as of December 31, 2009.
Trust distribution minutes after Bamford