Also, you may have better success in attracting responses to your thread, and you'll make your thread easier to find for those browsing the forum for the same answers, if you change your thread title to something more descriptive. To do so, click the "Edit" button on your original post, then click "Go Advanced" and you will see where to edit the thread title.
Lion does not have Rosetta and therefore cannot run PowerPC only software.
Since the Intel transition was announced mid 2005 any software older than that (and even some software released shortly after that) will not be able to run on Lion (or later). If you need office, I suggest buying the latest version.