I have Microsoft Office Home and Student 2007 pre installed on a new laptop. The product key doesn't work and tried the ones given on the Fix'ya website, they didn't work either. Any help? What can I do, don't want to buy a new office suite...

The product-key on the key is for Microsoft Windows, not for Microsoft Office.
So, you're correct in stating that the key won't work.

What probably was pre-installed was a "trial" version, and you clicked "I agree" (to use the trial version) the first time that you started Microsoft Office. After 30 days, the "trial" period has ended, and it's time to purchase a license-key.

Or, take a closer-look at the license-key: OH-versus-ZERO, ONE-versus-ELL, FIVE-versus-ESS, EIGHT-versus-B, OH-versus-QUEUE.