windows install question

im using leopard, and in the bootcamp assistant, it says i need this (copied from guide):

-Mac OS X Leopard installation disc, which can be either of the following:

-Mac OS X Leopard disc (included with all purchased copies of Leopard)

-Mac OS X Install Disc 1 (included with all Macs that have Leopard preinstalled)

i got my imac with tiger preinstalled, and used the drop in disc to upgrade it. which disk do i put in, the drop in, or the install disk? and when i install the drivers after i install windows, which one do i use? the install disk, which is tiger, or the drop in disk? and do i need those install disks at all since ive upgraded to leopard, and those are for tiger?