Approval Letter

I recently received an approval letter for our on  arrival visa for two applicants. I wanted to verify, do I need to just  print one approval letter or do I need to print 2 (one of each of us).  Do I need 2 arrival forms also or just one for the both of us? Will we  both need $25 USD ($50 total) for the stamping fee on arrival or do we  just pay the $25 for both of us?
Thank you,
Jeff Seibel