RANCID login info

[Kanagaraj Krishna]

Hi,
     I'm currently having RANCID for my config management and have it to =
run every 6 hours. I have a few questions:

- I realise that RANCID keeps only the latest/last config for each =
device after running differ. It would pose a problem,  if i want to do =
configuration fallback to a few days back.  Is there a way to keep =
backups of the full config, each time the differ runs.

- How can I upload the config straight to a device (minus other output =
info like sh version, sh vlan etc, which is also in the backup file)?

Regards,
Kana