How do I archive discussions?

Hi,

I am working on EP 6.0 SP2 Patch 4 HF2.

I have a standalone KM Discussions iView.

I want to archive the discussion threads after a period of, say, every seven days. At the same time, I want these threads to be available to the users later on.

Does anybody have an idea about the archiving capabilities for discussions? If yes, please reply ASAP.Thanks in advance.

Regards,

Sagar