User based Classifieds site

Is it possible to create a user generated classifieds site using marketpress or classifieds?

I had a phpprobid site which was hacked and rather than return to an auction based site I was hoping to relaunch with a classifieds site.

I want to use the old db to recreate all the old users in the new classifieds site but due to the fact it was hacked I don;t want to use anything other than the username and emails to rebuild the site.

Is this possible?

If so how?