For many versions of Windows up to and including Windows XP, I have created a 
DOWNLOAD folder in the root directory and in that folder, a SOFTWARE folder and in
there a ClarkAnderson folder.  
Here are example structures:

  C:\DOWNLOAD\SOFTWARE\ClarkAnderson
            or
  D:\DOWNLOAD\SOFTWARE\ClarkAnderson

The rules changed with VISTA and Windows 7.

Windows 7 provides:
  C:\Users\Public\Public Downloads
In there, I created the SOFTWARE and the ClarkAnderson folder:  
  C:\Users\Public\Public Downloads\SOFTWARE\ClarkAnderson

After you have created your download folder, you can download any or all of these 
tools into:
      ...\SOFTWARE\ClarkAnderson\
Start with iInstlMgr.exe

When you 'Run' (double_click or right_click, Run) iInstlMgr.exe, it adds two files
to the folder: InstallMgr.exe and ZZtestZZ.htm

When you 'run' any of the other downloaded programs, they create their own folders
with the installation files the require.

When you 'Run' InstallMgr.exe, it identifies these folders and provides a button 
you can use to install each application.  Accepting the defaults should provide a 
successful installation for all of the applications you want.