I am on a tight deadline for redesigning my website to be totally run off of databases such as sitepoints website. I am wondering if there is a free script out there that has these abilities:
Polls, Articles, Links, News (separate pages for each and the latest 5 news stories will show up on index page), ability to add authors, administration section.

I have looked at some things such as Back-End but that is overkill for what I am looking for.

The script is pretty much how sitepoint is.

Thanks everyone.