Everyone with the OS 8-9.x systems:

Prior to installing LW, suggest that you run Disk First Aid, DiskWarrior and/or Norton Utilities to make sure your system is in good condition.

Increase LW preferred memory by 200-300%.
http://docs.info.apple.com/article.html?artnum=18278 Mac OS: Assigning More Memory to an Application Program.

After you are done with all the downloadings & installations you MUST rebuild your desktops.
http://docs.info.apple.com/article.html?artnum=10182 Rebuilding Desktop File and Icon Recovery.
Or use Techtool Lite which makes rebuilding your desktop easier w/o all the finger twisting on the keyboards.