Hi sofd, welcome to the forum.
PFD = Pay for Delete. It's an offer you make, IN WRITING to a CA or OC in exchange for deleting the baddie from your record. Print out our Common Abbreviations:
http://ficoforums.myfico.com/fico/board/message?board.id=generalcredit&thread.id=52625
NEVER talk to a collection agency on the phone. Writing only, CMRRR(cert.mail, ret. rec. req.) Make no committments until you know EXACTLY where you stand with them.
What are the details? The OC, the CA, who owns the account, how old is it, what state, etc, etc. We really need details to help you.

Sorry to say Cap1 is not very forgiving, from what I've heard here, and my experiences with them.
"Never ever, ever be late. Never" (FUTR)