Welcome to FT, SlickRick.
Just call Delta with the confirmation number(s) and have them put the Onepass number in. It doesn't matter when you put the number in, as long as it's in the system before you fly. But hold onto your boarding passes, so just in case the EQMs don't show up, you can send them to CO to get credit.
Both F (domestic first) and I (discounted international business class) count as 150% EQMs with Onepass. See
http://www.continental.com/onepass/e...line/delta.asp