Passcode as in the lock screen with numbers n letters on it ? When you flick it on ?
Also what encrypted pass mate the 1 she uses to download to buy stuff ?
Yes passcode to lock phone disable before running absinthe.
The encrypted password is in itunes for when you backup your iphone files if you made a encrypted password, just uncheck the box before running absinthe.
If you did not make a encrypted password the no worries, but i suggest afterwards when all jailbroken you do so to protect the backups from prying eyes.