Thanks so much for your help! I finally got everything done - a bit intimidating for a newbie - and installed! Everything is working fine except the fave smilies (or anything indicating fave smilies) are not showing up, only the regular smiliebox. We have the "fave smilies" options and can make/save selections, but then nothing changes in the smiliebox or anywhere when a post is made. I have double checked all permissions, usergroups and board settings.
One thing that was unclear to me, was where to upload the includes/functions_editor.php file after making changes in Notepad. The file wasn't visible (no PHP files) in the unzipped folder, but I was able to find it by doing a search on my hard drive. I modified and saved the file back in the XML and HTML docs, then uploaded them to my server in the public_html section. I suspect I went wrong somewhere during that process? Any help would be greatly appreciated!