Office 2004 Applications Won't Work in Lion
You must have Office 2004 which is a PPC-only suite and will not work in Lion. You need to upgrade to Office 2011 - Mactopia - or you can try the freeware suite, Libre Office, that is functionally similar to Office 2007 for Windows except it works on Lion.
You may want to consider as well:
These two suites are similar to Libre Office but not as current or as well-supported:
And, then there is Apple's iWork suite:
Pages - word processing and layout
Keynote - presentation
Numbers - spreadsheet
Each can open and save Office compatible files. They may be purchased separately via the Mac App Store for $19.99 each.
(Access to the Mac App Store requires Snow Leopard 10.6.6 or higher and an Apple ID.)
You have 2 options.
1) Spend more money and upgrade all the programs that don't work with Lion to a newer versions that works with Lion.
2) Save all your files. Boot the computrer from the system Install DVD that came with your system, or a retail Snow Leopard DVD, Wipe/Erase or Re-Partition the hard drive then Re-install Snow Leopard and all your current programs. Once that is done copy all your files back onto the hard drive.
On the other hand: You did not have to upgrade. There are free alternatives to Office. Apple doesn't make money from sales of Office or any third-party software.
You can easily set up a Snow Leopard partition on your hard drive or on an external drive that you can use for that rare time when you use that old software.
Personally, I found it all very simple and user friendly. But then you can look for impending thunderstorm or the impending sunshine. Your choice.
Thanx for the assist. Seems like a clever way for Apple to add more coin to their already bulging pockets. Paid for the Lion upgrade and now I have to purchase Office 2011 to replace a little used Office 2004 that worked just fine. Disappointed to see this coming from "user friendly Apple."
Apple make no extra money if you buy MICROSOFT Office.