Hi. Very easy. Use the “Data Merge” pallete. Go to the Windows menu>Automation >Data Merge.
The pallett itself displays three simple steps. Obviously, create your template first and best to use style sheets.
The template can be layed out in either a master page or normal page. Refer to “Real World InDesign CS2” for all the info you will need. Note: I beleive that this topic is not covered (or sparcly covered) in Adobe’s Printed Manual. It it not covered at all in Adobe’s Classroom in a Book.