Links to Download Older Build Versions of Parallels 4?

I'm troubleshooting and need to download an older build version of Parallels Desktop V4 for Mac.

Where are the download links? The main page now only has Parallels 5 link.

 

I'm in the same boat. Need to download Parallels Desktop 4 for Mac.

I think I found the link in another thread: http://kb.parallels.com/en/5802