e.avila --
Welcome to Apple Discussions.
Which G5 do you have . . . is it one of the new Intel Duo Core,
or the regular G5?
Take a look at your applications folder.
Is there an "AppleWorks" application in there?
If not, here are two suggestions that are free for the download.
Both come recommended by experienced helpers here.
http://www.neooffice.org/
http://www.abisource.com/
Hope this helps.