Help my Microsoft Office and Photogallery

I would like to ask a question for some advice. It is about a HP Pavilion zv6000 Notebook, the programs MS Office Home Standard Edition and Photogallery. I bought it about a year and a half ago and I have recently gone back to school for networking to better myself and my career. On of the classes Micro computer application required me to load MS Office Professional Teacher/Student Edition because my Access wasn't compatable and I asked it not to replace my current version which it didn't until last week, my photogallery, I still don't know what happened to it. Both programs now instantly start windows installer and then ask for the product key and when I bought my computer my program is authentic now it says it needs to be authenticated. I bought this computer new in Sept. 2005, I also have every piece of paper that came with it. Anyway, I spoke to Microsoft and they said that HP should have given me the disks for all of the programs and I only have 1 for the inter video. I've called HP and they said I never bought MS Office even though they installed it (this is the message they left me this morning). From my receipt it says I bought Microsoft Windows XP Home Edition with SP2. It seems HP isn't going to help me and I don't know what to do. I don't feel like I should have to pay for Office and Photogallery again. Any suggestions? I do know that these are just suggestions by the way.