Lost Microsoft Office Small Business 2007 Install Disk

I installed Microsoft Office Small Business 2007 on my laptop (Lenovo 3000 N100; Windows Vista Business) back in March 20007. My laptop has been causing me some headaches recently and I’ve determined that I just want to restore the computer back to the condition in which I first purchased it. I can’t seem to find the Microsoft Office Install disks I used anywhere and I don’t want to have to purchase the entire Office Suite all over again if I want to completely restore my computer. Is there anyway I can avoid doing that? If I create a Data DVD with all of Microsoft Office’s Program Files on my computer and then restore my computer, can I use that disk to reinstall the entire office Suite? Any feedback would be great! Thanks a lot!