No... You can't migrate Office, it's designed to break if you try. And if Office 2000 came with your old computer, then the license lives and dies with that computer, you cannot move it (legally) to another system.
If it's a retail version, then 7 Pro's XP Mode would be about your only hope. So if you don't like OpenOffice, there's always Google's online tools, and I think Microsoft is working on an online version of Office. There's also WordPerfect Suite. Not sure if IBM is still selling their Lotus office suite anymore or not.
Other than that, the Home Office and Student version of Office 2007 is only like $200, which is reasonable enough IMO. I just wish the Windows Office developers could take a few lessons from the Mac Office developers on designing an interface. I have yet to see a single Windows app have anything even coming close to the simple, yet elegant, formatting pallet on Office for the Mac. But I digress.
Your options are few here. Either pay up for Office 2007, hope OpenOffice grows on you, or try one of the other options I mentioned. Personally, I'd go with OpenOffice. If nothing else, it's free, so it may have things about it you don't like, but you're not paying for it. All the online solutions are likely going to be too limited, and WordPerfect is very quirky. It can also do some things with ease that is an absolute nightmare with any other word processor. I have yet to see another word processor that has a feature to let you expand or shrink a document to a specific number of pages that you specify. Something WordPerfect has been doing since at least the Windows 3.1 days.
I will be grateful for any help for my following problem:
I recently bought a HP 6310y which runs Windows 7. It has Office 2007 as a trial version which shall expire in 60 days.
My old computer(HP Pavilion 6736) runs on Windows XP and has Office 2000.
Is there a way I can copy the Office 2000 from my old computer to the new computer? I seem to have misplaced the back-up CD for this OS as that was a long time ago. The backup CD may have had the appropriate files for Office 2000.
I tried but was unable to locate the exact location of Office 2000 in my old computer. All I see is shortcuts.
[PS: I tried OpenOffice but was not too happy with it. When I read online for possible issues with Office 2000/Windows 7, most of the issues were related to Outlook, which I do not use. Word,PowerPoint and Excel(all 2000) seemed to have less issues after deleting "Microsoft Live Air" on Windows 7]