Where can I download the old BitDefender Free Edition?

Hey all.  Love the product, and I recommend you to (and have sold your product to) my every business customer. 

I have a computer, though, that's running some basic services for my home network, and it's running Windows Vista still.  It's doing it's job just fine, still gets Windows Updates, and I don't really feel like upgrading the hardware or software when it's doing it's job perfectly well.  Microsoft Security Essentials ran out, though, and I'm kind of left feeling like an idiot for not having installed BitDefender this whole time, and so I'm wondering where I can get the old version that runs on XP and Vista, so that this machine can enjoy some decent endpoint security for the remainder of it's life.

Once again, I love the product.  Thank you for all that you do, you have made my life better and I really appreciate all your hard work.