I need to be able to get copies of checks witten to my ex wife for child support
From jan 2002 to aug 2003 bank name is bank of america and account is still in operation? How can I get this

Call the bank and ask how to get copies of old checks. If they have them on file they may be able to send you images for a fee. However many banks in those days actually returned cancelled checks to the account owner, so they may not have images available. Call and ask.