Ah, you've got an auto? Yeah you just use the flexplate that comes with it. Put a better converter in it while its out too. Call up Freakshow Performance in Texas
for a really good one that won't break the bank.
And don't throw out that 8 bolt flexplate, those are desirable pieces for ppl with forged/8 bolt cranks going auto. Ford only made them for 2.5 years in the modulars, 99-01. In 01.5 they went back to 6 bolt.