Mismatched Seatbelts

I bought a 2002 Ford E350 extended passenger van a few months ago. At the time, the man I bought it from bragged about the new 2008 seats in the four passenger rows. I thought, great. When my bandmates went to buckle their seatbelts, they realized the large male buckle on the wall didn’t fit into the tiny female buckle on the seat. Go ahead, make your jokes now.



How do I fix it? Can I replace just the female buckles? Just the male buckles? Which is the cheapest and safest way?



Please help!

thx

J