I have recently fallen into an offer situation with a company that takes its background checks unusually seriously. Also, I have an offer letter today.

EDIT:::
I usually don't put the grocery clerk or 2 week CSR position from 6 and 7 years ago on my resume, but I've never had an intense background check done by a large corp - should I include these as part of my work history on the BGC forms?
EDIT2::: / SELF ANSWER
I think I asked a stupid question. I will post all work history from the last 7 years. I just don't remember the dates for the 2 odd jobs I had yeaaaars ago.
Thanks all