It's been a while since I used Suse, but doesn't the YAST system allow you to update packages? However, I'm not sure how well 8.0 would support Gnome 2.2. If you've got a fast internet connection you can always ftp upgrade to Suse 8.2, which is apparently considerably better and includes Gnome2.2 amongst its' many window manager/desktop combinations. The Suse website is a bit impenetratable, but all the info is buried there somewhere