I used these instruction for here to convert the Wave 3 Beta exe so it would run on Server 2008 32bit!
Update: Rafael Rivera Jr. has provided a much more elegant method of providing support for unsupported operating systems:
#1. Download Resource Hacker.
#2. Open the Live installer executable (either WLSetup-All.exe or WLSetup-Web.exe) inside Resource Hacker.
#3. Locate CONFIG -> CONFIG0 -> 0
#4. Strip out the following XML, leaving the surrounding text:
#5. Compile the script.
#6. Save the modified executable.
#7. Run the modified executable, and the OS check is no longer there!
Much better than trying to get files during mid install etc.
I was able to install all programs from the beta pack.