Subdomains and Mirroring

Hello, I am working on an install of Joomba, and I want to be able to Have a subdomain ex:
mirror something on

I was wondering about htaccess…
I have looked into the mirroring in the dreamhost panel, but it only allows you to mirror an entire domain, like, not

Is there any way to do this?
I am open to anything besides frames, Im not a big fan of frames since it makes linking difficult for users…

Do you definitely want mirroring and not just a simple redirect?

One problem you’re going to have in trying to mirror the news section is that the mirror is going to have a heck of a time remapping the links when they’re not just simple rewrites of the domain.

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